EP0846810B1 - Wastewater pumping station - Google Patents

Wastewater pumping station Download PDF

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Publication number
EP0846810B1
EP0846810B1 EP19970120810 EP97120810A EP0846810B1 EP 0846810 B1 EP0846810 B1 EP 0846810B1 EP 19970120810 EP19970120810 EP 19970120810 EP 97120810 A EP97120810 A EP 97120810A EP 0846810 B1 EP0846810 B1 EP 0846810B1
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EP
European Patent Office
Prior art keywords
pump
outlet opening
effluent
ball
balls
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
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EP19970120810
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German (de)
French (fr)
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EP0846810A3 (en
EP0846810A2 (en
Inventor
Wilfried Dipl.Ing. Strate
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Strate Technologie fuer Abwasser GmbH
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Strate Technologie fuer Abwasser GmbH
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Publication of EP0846810A2 publication Critical patent/EP0846810A2/en
Publication of EP0846810A3 publication Critical patent/EP0846810A3/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage
    • 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
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • 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
    • F04D13/16—Pumping installations or systems with storage reservoirs
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/906—Valves biased by fluid "springs"
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86686—Plural disk or plug

Definitions

  • the invention relates to a sewage lifting plant according to the Preamble of claim 1.
  • a sewage lifting plant is by the German patent DE 36 07 353 C2 known.
  • the known wastewater lifting plant comprises two bulky material collection rooms, which the wastewater contaminated with bulky substances is fed, as well as a common collection container for the one that has been freed of bulky materials and pre-cleaned Wastewater from each bulky material collection room via a connecting line to the collection container flows.
  • Each emptying agent collection room is for emptying the collecting container a pump assigned, which during operation Waste water flow through the respective connection line and through the respective bulk material collection space in a pressure pipeline conveys and pumps.
  • Each connection line is in the known sewage lifting plant a locking device associated with the Task has one during the filling process of the collecting container Outlet opening in the connection line to the collection container to release and the connection to the concerned Shut off the pump at least partially, so that the pre-cleaned Waste water completely or for the most part this outlet opening and not through the pump in the Collection container can flow.
  • centrifugal pumps used it is not harmful if one low proportion flows through the pump to this flush out.
  • the closing device also has the task of the outlet opening to lock and lock when assigned Pump is on and the collection container emptied. Through the then closed outlet opening ensures that the pumped pump Waste water flow completely enters the pressure pipeline and not pumped back into the collection container becomes.
  • the locking device by a spring Return regulation flap formed by the spring into a connecting line to the pump partially blocking position is brought. simultaneously is the one leading directly into the collection container Outlet opening in the connecting line released.
  • the Return regulation flap through the wastewater flow brought into a position against the spring force in which the outlet opening in the connecting line closes.
  • flaps can occur during operation occur when the return flow control valve is in its the closing position blocking the outlet opening becomes. Such flaps can be too mechanical Vibrations that occur over the pipes reproduce and possibly also acoustically as sounds Beats are noticeable.
  • the invention has for its object an improved To create sewage lifting plant, which also in the Overload operation when large amounts of waste water are generated a safe functioning with regard to opening and the exit openings are closed and is inexpensive to implement.
  • Forced control is provided in the invention, which ensures that the outlet openings in the Connection lines through the locking devices in Dependence of the respective operating state of the pumps are mutually released or blocked. Thereby is achieved that the pump in operation assigned exit opening blocked on the one hand and the other outlet opening, that of the other not switched on pump is assigned, forcibly simultaneously is automatically released.
  • each locking device is by a ball formed, which fastened in a to the connecting line Ball housing, which is the outlet opening has.
  • the use of a ball has the advantage that because of the round surface has no edges.
  • the ball can move freely within the ball housing and is supported by the Wastewater washed free because the ball is completely from that Waste water can be washed around and incrustations washed away become. This also leads to a longer lifespan Closing device.
  • the two balls of the locking device mechanically coupled. This will make the desired forced control ensured, which ensures that the one exit opening is inevitably closed, when the other outlet is open.
  • the two balls are advantageously a common one Rocker assigned by each of the two balls around one
  • the pivot point can be pivoted into a respective end position.
  • the the ball blocking the outlet opening actuates the rocker, which then inevitably and simultaneously on the other ball acts so that this the assigned outlet opening releases.
  • the plastic balls which turns out to be special robust and resistant in terms of long life has proven.
  • the balls can be hollow and with Fiber can be filled to the specific weight to influence the balls.
  • the specific weight can be used to determine the closing behavior of the balls to influence and optimize.
  • FIG. 1 shows a sewage elevator 10 in a along the line of symmetry 48 shown unfolded representation.
  • the left and right are the Line of symmetry 48 actually located in the Drawing level one above the other.
  • the sewage lifting unit 10 comprises a housing 12 with a Ventilation opening 14. Inside the housing 12 two bulky material collecting spaces 20 and a common one Collecting container 30. Each bulky material collecting space 20 is one Pump 26 assigned outside the housing 12.
  • Each connecting line 24 is a locking device 36 assigned, the closer structure below based on 2-7 is explained.
  • arrow A illustrates that the closing device at least the way to the right pump 26 mostly shut off, so that the pre-cleaned Waste water from the connecting line 24 directly into the Collection container 30 arrives.
  • This is a bypass released in parallel to the pump 26 by the pre-cleaned Waste water not through the stationary pump 26, but arrives directly in the collecting container 30.
  • the real one Locking device 36 is by two balls 58 and 60 formed, each within a ball housing 62nd are arranged vertically movable.
  • the ball housing 62 is connected below to the connecting line 24 and has an outlet opening at its upper end 38 or 40 through which the inflow from the connecting line 24 through the ball housing 62 to the collecting container 20 is released or blocked by the balls 58, 60.
  • the two balls 58, 60 have a common rocker 50 each assigned to an actuating arm 52 and 54.
  • the Rocker 50 is pivotable about a hinge point 56 and forms a mechanical coupling between the two balls 58 and 60.
  • FIGS. 4 and 5 Another exemplary embodiment is shown in FIGS. 4 and 5 shown.
  • the outlet openings 38, 40 are mutually spaced apart, and the two Balls 58 and 60 are rigid with one another via a rod 64 connected.
  • Figs. 2 to 5 are preferred if the pumps are used as Centrifugal pumps are designed and large volume flows or large amounts of waste water occur. This means z. B. in the illustration shown in Fig. 3 that about the left connecting pipe 24 flowing waste water the opened outlet opening 38 into the collecting container can flow, and that at the same time also part of the Waste water through the centrifugal pump itself into the collection container arrives, the impeller of the centrifugal pump from any deposits can be washed away. Because of the large volume flows suffice for balls 58 and 60 influenced by the wastewater flow itself then in the manner described the one ball over the mechanical coupling by means of the rocker 50 is inevitable acts on the other ball.
  • a locking device 36 in contrast, the balls 58, 60 influenced by a control device 42 and controlled.
  • the control device 42 has a lower one Push rod 44, which is connected to rocker 50 via a joint 46 or the actuating arm 54 is connected.
  • the rocker 50 When switching one of the two pumps will push rod 44 either in the direction of arrow G down (Fig. 6) or moved in the direction of arrow H (Fig. 7).
  • the rocker 50 inevitably takes one of the two 6 and 7 positions shown in which their Actuate actuating arms 52 and 54 on balls 58 and 60, respectively and either release the outlet openings 38, 40 or close. Because of the forced control is there again the one outlet opening 38, 40 is closed, while the other outlet 38, 40 automatically is released.
  • This embodiment is used when using positive displacement pumps preferred if the amount of waste water is not so large is. Without the forced control by the control device 42 and the push rod 44 can namely There is a risk that the balls 58, 60 because of the comparatively low volume flows of the wastewater safely assume their respective closed positions can what is avoided by the control device 42 that is, along with turning on one of the pumps is actuated in each case.

Abstract

A sewage lifting station having at least two solid waste collection chambers for receiving pumped solid waste-contaminated sewage. The station has a collection tank for receiving pre-treated waste water flowing from the solid waste collection chambers via connection pipes. Each solid waste collection chamber is connected to a pump to empty the collection tank via one of the connection pipes and solid waste collection chambers to pump the current of sewage into a pressure pipeline. There is a closing device connected to each connection pipe to selectively close an exit orifice in the connection pipe and open a connection to an operating pump to drain the collection tank. A control device alternately closes and opens the exit orifices with the closing devices so that an exit orifice allocated to an operating pump is closed and an exit orifice allocated to a non-operating pump is simultaneously and automatically opened. The present invention ensures precise opening and closing of the exit orifices, thus ensuring efficient operation of the sewage lifting station.

Description

Die Erfindung betrifft eine Abwasserhebeanlage gemäß dem Oberbegriff des Patentanspruchs 1. Eine solche Abwasserhebeanlage ist durch das deutsche Patent DE 36 07 353 C2 bekannt.The invention relates to a sewage lifting plant according to the Preamble of claim 1. Such a sewage lifting plant is by the German patent DE 36 07 353 C2 known.

Die bekannte Abwasserhebeanlage umfaßt zwei Sperrstoffsammelräume, welchen das mit Sperrstoffen behaftete Abwasser zugeführt wird, sowie einen gemeinsamen Sammelbehälter für das von Sperrstoffen befreite und vorgereinigte Abwasser, welches von jedem Sperrstoffsammelraum über je eine Verbindungsleitung in den Sammelbehälter fließt.The known wastewater lifting plant comprises two bulky material collection rooms, which the wastewater contaminated with bulky substances is fed, as well as a common collection container for the one that has been freed of bulky materials and pre-cleaned Wastewater from each bulky material collection room via a connecting line to the collection container flows.

Zur Entleerung des Sammelbehälters ist jedem Sperrstoffsammelraum eine Pumpe zugeordnet, welche im Betrieb einen Abwasserförderstrom durch die jeweilige Verbindungsleitung und durch den jeweiligen Sperrstoffsammelraum in eine Druckrohrleitung fördert und pumpt.Each emptying agent collection room is for emptying the collecting container a pump assigned, which during operation Waste water flow through the respective connection line and through the respective bulk material collection space in a pressure pipeline conveys and pumps.

Jeder Verbindungsleitung ist bei der bekannten Abwasserhebeanlage eine Schließvorrichtung zugeordnet, welche die Aufgabe hat, beim Füllvorgang des Sammelbehälters eine Austrittsöffnung in der Verbindungsleitung zum Sammelbehälter freizugeben und die Verbindung zur betreffenden Pumpe zumindest teilweise abzusperren, so daß das vorgereinigte Abwasser vollständig oder größten Teils über diese Austrittsöffnung und nicht durch die Pumpe in den Sammelbehälter fließen kann. Sofern Kreiselpumpen verwendet werden, ist es nicht schädlich, wenn ein geringer Anteil durch die Pumpe fließt, um diese freizuspülen.Each connection line is in the known sewage lifting plant a locking device associated with the Task has one during the filling process of the collecting container Outlet opening in the connection line to the collection container to release and the connection to the concerned Shut off the pump at least partially, so that the pre-cleaned Waste water completely or for the most part this outlet opening and not through the pump in the Collection container can flow. Provided centrifugal pumps used, it is not harmful if one low proportion flows through the pump to this flush out.

Die Schließvorrichtung hat daneben die Aufgabe, die Austrittsöffnung zu sperren und abzuschließen, wenn die zugeordnet Pumpe eingeschaltet ist und den Sammelbehälter entleert. Durch die dann geschlossene Austrittsöffnung wird gewährleistet, daß der von der Pumpe geförderte Abwasserstrom vollständig in die Druckrohrleitung gelangt und nicht wieder in den Sammelbehälter zurückgepumpt wird. The closing device also has the task of the outlet opening to lock and lock when assigned Pump is on and the collection container emptied. Through the then closed outlet opening ensures that the pumped pump Waste water flow completely enters the pressure pipeline and not pumped back into the collection container becomes.

Bei der bekannten Abwasserhebeanlage wird die Schließvorrichtung durch eine unter der Einwirkung einer Feder stehende Rücklaufregulierungsklappe gebildet, welche durch die Feder in eine die Verbindungsleitung zur Pumpe teilweise absperrende Position gebracht wird. Gleichzeitig ist die direkt in den Sammelbehälter führende Austrittsöffnung in der Verbindungsleitung freigegeben. Wenn der Sammelbehälter gefüllt ist und sich die niveauabhängig gesteuerte Pumpe einschaltet, wird die Rücklaufregulierungsklappe durch den Abwasserförderstrom entgegen der Federkraft in eine Lage gebracht, in welcher sie die Austrittsöffnung in der Verbindungsleitung schließt. Die Betätigung der bekannten Schließvorrichtung in Form der Rücklaufregulierungsklappe erfolgt also einerseits durch die Federkraft und andererseits durch das Medium, also durch den Abwasserförderstrom.In the known sewage lifting plant, the locking device by a spring Return regulation flap formed by the spring into a connecting line to the pump partially blocking position is brought. simultaneously is the one leading directly into the collection container Outlet opening in the connecting line released. When the collection container is full and the level-controlled pump switches on, the Return regulation flap through the wastewater flow brought into a position against the spring force in which the outlet opening in the connecting line closes. The operation of the known locking device in the form of the return regulating flap, on the one hand by the spring force and on the other hand by the Medium, i.e. through the wastewater flow.

In der Praxis hat sich die bekannte Abwasserhebeanlage zwar bewährt, allerdings können im Betrieb Klappenschläge auftreten, wenn die Rücklaufregulierungsklappe in ihre die Austrittsöffnung absperrende Schließposition gebracht wird. Solche Klappenschläge können zu mechanischen Schwingungen führen, die sich über die Rohrleitungen fortpflanzen und unter Umständen auch akustisch als Laute Schläge wahrnehmbar sind.In practice, the well-known wastewater lifting plant Proven, however, flaps can occur during operation occur when the return flow control valve is in its the closing position blocking the outlet opening becomes. Such flaps can be too mechanical Vibrations that occur over the pipes reproduce and possibly also acoustically as sounds Beats are noticeable.

Bei extremen Betriebsbedingungen der Abwasserhebeanlage, beispielsweise bei plötzlich einsetzendem Platzregen und somit bei einem Anfall von großen Abwassermengen können gegebenenfalls undefinierte Schaltzustände der Rücklaufregulierungsklappe auftreten, was auf die jeweilige Einstellung der Federkraft der auf die Rücklaufregulierungsklappe einwirkenden Feder zurückzuführen ist. Auch kann der Aufbau der bekannten Abwasserhebeanlage wegen der Vielzahl der benötigten Einzelteile und wegen der erforderlichen Einstellarbeit für die Rückstellkraft der Feder vergleichsweise teuer sein.With extreme operating conditions of the wastewater lifting plant, for example, when there is a sudden downpour of rain and thus in the case of large amounts of wastewater possibly undefined switching states of the return regulation flap occur what on the particular setting the spring force of the return regulation flap acting spring is due. Can too the construction of the known sewage lifting plant because of Large number of individual parts and because of the required Adjustment work for the restoring force of the spring be comparatively expensive.

Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Abwasserhebeanlage zu schaffen, die auch im Überlastbetrieb bei Anfall großer Mengen von Abwasser eine sichere Funktionsweise hinsichtlich des Öffnens und des Schließens der Austrittsöffnungen gewährleistet und kostengünstig realisierbar ist.The invention has for its object an improved To create sewage lifting plant, which also in the Overload operation when large amounts of waste water are generated a safe functioning with regard to opening and the exit openings are closed and is inexpensive to implement.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Patentanspruchs 1. This problem is solved by the features of Claim 1.

Bei der Erfindung wird eine Zwangssteuerung vorgesehen, welche dafür sorgt, daß die Austrittsöffnungen in den Verbindungsleitungen durch die Schließvorrichtungen in Abhängigkeit des jeweiligen Betriebszustandes der Pumpen wechselseitig freigegeben oder gesperrt sind. Dadurch wird erreicht, daß die der in Betrieb befindlichen Pumpe zugeordnete Austrittsöffnung einerseits gesperrt und die andere Austrittsöffnung, die der anderen nicht eingeschalteten Pumpe zugeordnet ist, zwangsweise gleichzeitig automatisch freigegeben ist.Forced control is provided in the invention, which ensures that the outlet openings in the Connection lines through the locking devices in Dependence of the respective operating state of the pumps are mutually released or blocked. Thereby is achieved that the pump in operation assigned exit opening blocked on the one hand and the other outlet opening, that of the other not switched on pump is assigned, forcibly simultaneously is automatically released.

Dadurch ergeben sich definierte Schließstellungen der Schließvorrichtung auch bei großen Abwassermengen, und es ist gewährleistet, daß in einen Sammelbehälter über eine freigegebene Austrittsöffnung fließendes Abwasser auch vollständig in den Sammelbehälter fließen kann und die Austrittsöffnung nicht vorher abgesperrt wird, bis die betreffende Pumpe eingeschaltet wird. Dies führt zu einer Erhöhung der Zuverlässigkeit der Betriebsweise der gesamten Abwasserhebeanlage. Wenn nämlich die eine Austrittsöffnung freigegeben ist, ist die andere Austrittsöffnung zwangsläufig abgesperrt. Durch die freigegebene Öffnung wird ein Bypass zur zugeordneten Pumpe geschaffen, wobei die Pumpe sowohl als Kreiselpumpe als auch als Verdrängerpumpe ausgebildet sein kann. This results in defined closed positions of the Closing device even with large amounts of waste water, and it it is guaranteed that in a collecting container over a released outlet flowing wastewater too can flow completely into the collection container and the Exit opening is not blocked off before the relevant pump is switched on. This leads to a Increase the reliability of the operation of the whole Sewage lifting unit. If namely the one outlet is released, is the other outlet inevitably cordoned off. By the released A bypass is opened to the assigned pump created, the pump both as a centrifugal pump as can also be designed as a positive displacement pump.

Bei Verwendung einer Kreiselpumpe kann durchaus ein Anteil des zuströmenden Abwassers durch die Pumpe selbst fließen, um diese freizuspülen und eventuelle Ablagerungen an den Laufrädern zu beseitigen. Durch eine Verdrängerpumpe kann demgegenüber kein Abwasser in den Sammelraum fließen, so daß in diesem Fall die gesamte Menge des vorgereinigten Abwassers über den Bypass und über die Austrittsöffnung in den Sammelbehälter gelangt.When using a centrifugal pump, a portion of the inflowing wastewater flow through the pump itself to this rinse free and possible deposits on the wheels remove. In contrast, a positive displacement pump cannot Waste water flow into the collection room, so that in this case the total amount of pre-treated waste water via the bypass and reaches the collecting container via the outlet opening.

Der Vorteil der Zwangssteuerung in Abhängigkeit des jeweiligen Betriebszustandes der Pumpen liegt auch darin, daß die Schließvorrichtungen nicht mehr ausschließlich mediumgesteuert sind, so daß auch bei geringen Abwassermengen sichere und definierte Schließstellungen hinsichtlich der Austrittsöffnungen erreicht werden. Dies ist insbesondere dann von Vorteil, wenn Verdrängerpumpen eingesetzt werden, die bei vergleichsweise geringen Abwassermengen wegen ihres besseren Wirkungsgrades bevorzugt sind.The advantage of forced control depending on the respective Operating state of the pumps is also that the locking devices are no longer exclusively medium-controlled, so that even with small amounts of wastewater safe and defined Closed positions with regard to the outlet openings reached become. This is particularly advantageous if positive displacement pumps are used at comparatively small amounts of waste water because of their better efficiency are preferred.

Bei der Erfindung ist jede Schließvorrichtung durch eine Kugel gebildet, die sich in einem an der Verbindungsleitung befestigte Kugelgehäuse befindet, welches die Austrittsöffnung besitzt. In the invention, each locking device is by a ball formed, which fastened in a to the connecting line Ball housing, which is the outlet opening has.

Die Verwendung einer Kugel hat den Vorteil, daß diese wegen der runden Oberfläche keine Kanten aufweist. Die Kugel kann sich frei innerhalb des Kugelgehäuses bewegen und wird durch das Abwasser freigewaschen, weil die Kugel vollständig von dem Abwasser umspült werden kann und Verkrustungen abgespült werden. Dies führt auch zu einer längeren Lebensdauer der Schließvorrichtung.The use of a ball has the advantage that because of the round surface has no edges. The ball can move freely within the ball housing and is supported by the Wastewater washed free because the ball is completely from that Waste water can be washed around and incrustations washed away become. This also leads to a longer lifespan Closing device.

Außerdem sind bei der Erfindung die beiden Kugeln der Schließvorrichtung mechanisch miteinander gekoppelt. Dadurch wird die angestrebte Zwangssteuerung sichergestellt, die dafür sorgt, daß die eine Austrittsöffnung zwangsläufig geschlossen ist, wenn die andere Austrittsöffnung freigegeben ist.In addition, in the invention, the two balls of the locking device mechanically coupled. This will make the desired forced control ensured, which ensures that the one exit opening is inevitably closed, when the other outlet is open.

In vorteilhafter Weise ist den beiden Kugeln eine gemeinsame Wippe zugeordnet, die durch jede der beiden Kugeln um einen Gelenkpunkt in jeweils eine Endstellung verschwenkbar ist. Die die Austrittsöffnung sperrende Kugel betätigt dabei die Wippe, welche dann zwangsläufig und gleichzeitig auf die andere Kugel einwirkt, so daß diese die zugeordnete Austrittsöffnung freigibt. The two balls are advantageously a common one Rocker assigned by each of the two balls around one The pivot point can be pivoted into a respective end position. The the ball blocking the outlet opening actuates the rocker, which then inevitably and simultaneously on the other ball acts so that this the assigned outlet opening releases.

Daneben sieht eine zweckmäßige Ausgestaltung der Erfindung vor, daß die Austrittsöffnungen einander gegenüberliegend angeordnet sind, und daß die beiden Kugeln über eine Stange derart starr miteinander verbunden sind, daß die die Austrittsöffnung sperrende Kugel über die Stange so auf die andere Kugel einwirkt, daß diese die zugehörige Austrittsöffnung freigibt.In addition, there is an expedient embodiment of the invention before that the outlet openings opposite each other are arranged, and that the two balls are so rigidly connected to one another via a rod, that the ball blocking the outlet opening over the Rod acts on the other ball so that the associated outlet opening releases.

Diese Anordnungen sind von besonderem Vorteil bei größeren Abwasserströmen, welche die Kugeln wegen des großen Volumenstromes sicher in eine Schließstellung bringen können, weshalb diese Ausgestaltungen der Erfindung bevorzugt dann vorgesehen wird, wenn die Pumpen als Kreiselpumpen ausgebildet sind, die für vergleichsweise große Abwassermengen eingesetzt werden.These arrangements are of particular advantage larger wastewater flows, which the balls because of the large volume flow safely into a closed position can bring, why these embodiments of the invention is preferably provided when the pumps are designed as centrifugal pumps for comparatively large amounts of waste water are used.

Gemäß einer anderen zweckmäßigen Ausgestaltung der Erfindung ist eine auf die Kugeln über die gemeinsame Wippe einwirkende Steuervorrichtung vorgesehen, welche beim Einschalten jeweils einer Pumpe wirksam ist und welche mit dem Einschalten der einen Pumpe derart zwangsläufig auf die Kugeln einwirkt, daß die eine Kugel, welche der einen Austrittsöffnung zugeordnet ist, die beim Entleeren des Sammelbehälters gesperrt ist, freigegeben ist und gleichzeitig die andere Kugel zwangsweise in eine die andere Austrittsöffnung freigebende Position gebracht und gehalten wird.According to another expedient embodiment of the invention is one on the balls over the common seesaw acting control device is provided, which at Switching on one pump is effective and which one inevitably with the switching on of the one pump acts on the balls that one ball, which the an outlet opening is assigned, which when emptying the collection container is locked, released and at the same time the other ball is forced into one the other Brought opening position and is held.

Hier ist die Betätigung der Kugeln völlig unabhängig von dem Volumenstrom bzw. von der Menge des Abwassers, so daß auch bei kleineren Abwassermengen eine sichere Funktionsweise gewährleistet ist. Deshalb wird in weiterer vorteilhafter Ausgestaltung der Erfindung vorgesehen, die Pumpen als Verdrängerpumpen auszubilden, die sich durch einen hohen Wirkungsgrad auszeichnen, jedoch - im Vergleich zu Kreiselpumpen - nur für kleinere Volumenströme bzw. für kleinere Abwassermengen eingesetzt werden. Auch in diesem Fall ist die sichere Funktionsweise der Abwasserhebeanlage gewährleistet, und die Zwangssteuerung sorgt dafür, daß jeweils eine Austrittsöffnung geöffnet ist, während die andere Austrittsöffnung zwangsläufig verschlossen ist.The actuation of the balls is completely independent of the volume flow or the amount of waste water, so that Safe operation even with small amounts of waste water is guaranteed. Therefore, it becomes more advantageous in another Embodiment of the invention provided that Design pumps as positive displacement pumps that stand out are characterized by high efficiency, however - in comparison to centrifugal pumps - only for smaller volume flows or for smaller amounts of wastewater. Also in this case, the safe functioning of the Wastewater lifting plant guaranteed, and the positive control ensures that one outlet opening is opened is inevitable, while the other outlet opening is closed.

In weiterer zweckmäßiger Ausgestaltung der Erfindung bestehen die Kugeln aus Kunststoff, der sich als besonders robust und resistent im Sinne einer langen Lebensdauer erwiesen hat. Die Kugeln können hohl ausgebildet und mit Ballaststoff gefüllt werden, um das spezifische Gewicht der Kugeln zu beeinflussen. Das spezifische Gewicht kann herangezogen werden, um das Schließverhalten der Kugeln zu beeinflussen und zu optimieren.In a further expedient embodiment of the invention the plastic balls, which turns out to be special robust and resistant in terms of long life has proven. The balls can be hollow and with Fiber can be filled to the specific weight to influence the balls. The specific weight can can be used to determine the closing behavior of the balls to influence and optimize.

Anhand der in der Zeichnung dargestellten Ausführungsbeispiele wird die Erfindung nachfolgend näher erläutert. Es zeigen:

Fig. 1
eine Abwasserhebeanlage mit zwei Sperrstoffsammelräumen,
Fig. 2 und 3
eine erste Ausführungsform einer Schließvorrichtung in jeweils zwei unterschiedlichen Arbeitspositionen,
Fig. 4 und 5
eine weitere Ausführungsform einer Schließvorrichtung in jeweils zwei unterschiedlichen Arbeitspositionen, und
Fig. 6 und 7
eine andere Ausführungsform einer Schließvorrichtung in jeweils einer ersten und zweiten Arbeitsposition.
The invention is explained in more detail below on the basis of the exemplary embodiments illustrated in the drawing. Show it:
Fig. 1
a wastewater lifting plant with two bulky material collection rooms,
2 and 3
a first embodiment of a locking device in two different working positions,
4 and 5
a further embodiment of a locking device in two different working positions, and
6 and 7
another embodiment of a locking device in a first and second working position.

Zur besseren Übersichtlichkeit ist in der Zeichnung gemäß Fig. 1 ein Abwasserhebewerk 10 in einer längs der Symmetrielinie 48 auseinandergeklappten Darstellung gezeigt. In der Praxis befinden sich die links und rechts der Symmetrielinie 48 befindlichen Teile tatsächlich in der Zeichenebene übereinander.For better clarity is in the drawing Fig. 1 shows a sewage elevator 10 in a along the line of symmetry 48 shown unfolded representation. In practice, the left and right are the Line of symmetry 48 actually located in the Drawing level one above the other.

Die Abwasserhebeanlage 10 umfaßt ein Gehäuse 12 mit einer Lüftungsöffnung 14. Innerhalb des Gehäuses 12 befinden sich zwei Sperrstoffsammelräume 20 sowie ein gemeinsamer Sammelbehälter 30. Jedem Sperrstoffsammelraum 20 ist eine Pumpe 26 außerhalb des Gehäuses 12 zugeordnet.The sewage lifting unit 10 comprises a housing 12 with a Ventilation opening 14. Inside the housing 12 two bulky material collecting spaces 20 and a common one Collecting container 30. Each bulky material collecting space 20 is one Pump 26 assigned outside the housing 12.

Über eine Einlaufleitung 16 fließt das mit Sperrstoffen 17 behaftete Abwasser 15 über einen Verteilertrichter 18 in die Sperrstoffsammelräume 20. Jeder Sperrstoffsammelraum 20 besitzt Trennklappen 22, durch welche die Sperrstoffe 17 in den Sperrstoffsammelräumen 20 zurückgehalten werden, während das von den Sperrstoffen 17 weitgehend befreite Wasser in die Verbindungsleitungen 24 fließen kann. Ferner enthält jeder Sperrstoffsammelraum 20 eine als Absperrorgan dienende Schwimmkugel 32.This flows with bulky substances via an inlet line 16 17 contaminated wastewater 15 via a distribution funnel 18 into the bulky material collection rooms 20. Everyone Bulky material collecting space 20 has separating flaps 22, through which the bulky substances 17 in the bulky substance collecting spaces 20 are held back while that by the bulky materials 17 largely cleared water in the connecting pipes 24 can flow. Each also contains a bulky substance collection space 20 one serving as a shut-off device Swimming ball 32.

Jeder Verbindungsleitung 24 ist eine Schließvorrichtung 36 zugeordnet, deren näherer Aufbau weiter unten noch anhand von Fig. 2 - 7 erläutert wird. In der rechten Bildhälfte ist in Fig. 1 der Füllvorgang des Sammelbehälters 30 beim Zulauf von Abwasser gemäß dem Pfeil A verdeutlicht, und durch den Pfeil B wird veranschaulicht, daß die Schließvorrichtung den Weg zur rechten Pumpe 26 zumindest überwiegend absperrt, so daß das vorgereinigte Abwasser von der Verbindungsleitung 24 direkt in den Sammelbehälter 30 gelangt. Hierbei wird also ein Bypass parallel zur Pumpe 26 freigegeben, indem das vorgereinigte Abwasser nicht durch die ruhende Pumpe 26, sondern direkt in den Sammelbehälter 30 gelangt.Each connecting line 24 is a locking device 36 assigned, the closer structure below based on 2-7 is explained. In the right half of the picture 1 is the filling process of the collecting container 30 for wastewater inflow according to arrow A, and arrow B illustrates that the closing device at least the way to the right pump 26 mostly shut off, so that the pre-cleaned Waste water from the connecting line 24 directly into the Collection container 30 arrives. This is a bypass released in parallel to the pump 26 by the pre-cleaned Waste water not through the stationary pump 26, but arrives directly in the collecting container 30.

Wenn der Sammelbehälter gefüllt ist und das darin befindliche Abwasser ein bestimmtes Niveau erreicht hat, wird eine der beiden niveauabhängig gesteuerten Pumpen 26 eingeschaltet, um den Sammelbehälter 30 zu entleeren und das Abwasser 15 über den zugeordneten Sperrstoffsammelraum 20 in eine Druckrohrleitung 34 zu fördern. Dieser Vorgang ist im linken Teil von Fig. 1 dargestellt und durch die Pfeile C, D und E verdeutlicht.When the collection container is full and what is in it Wastewater has reached a certain level one of the two level-controlled pumps 26 turned on to empty the collection container 30 and the wastewater 15 via the assigned bulk material collection space 20 to promote in a pressure pipeline 34. This Process is shown in the left part of Fig. 1 and indicated by arrows C, D and E.

Bei eingeschalteter Pumpe wird das Abwasser über eine untere Rohrleitung in Richtung des Pfeiles C durch die betreffende Pumpe 26 und über die Verbindungsleitung 24 durch den Sperrstoffsammelraum 20 in die Druckrohrleitung 34 gefördert. Die Schließvorrichtung 36 gibt dabei die Verbindung zwischen den Verbindungsleitung 24 und der Pumpe 26 frei und sperrt gleichzeitig den Zugang zum Sammelbehälter 30. Durch die Schwimmkugel 32 wird die Öffnung des Sperrstoffsammelraumes 20 zur Einlaufleitung 16 abgesperrt. Während der Förderung des Abwassers 15 durch den Sperrstoffsammelraum 20 in die Druckrohrleitung 34 werden die zuvor im Sperrstoffsammelraum 20 zurückgehaltenen Sperrstoffe 17 mitgespült und gelangen ebenfalls in die Druckrohrleitung. Das während des beschriebenen Fördervorganges gleichzeitig zulaufende Abwasser fließt durch den rechten Sperrstoffsammelraum 20 in den Sammelbehälter 30.When the pump is switched on, the waste water is discharged through a lower one Pipeline in the direction of arrow C through the relevant pump 26 and via the connecting line 24 through the barrier material collection space 20 into the pressure pipeline 34 funded. The closing device 36 gives the Connection between the connecting line 24 and the Pump 26 free and at the same time blocks access to the Collection container 30. The floating ball 32 Opening of the bulky material collecting space 20 to the inlet line 16 cordoned off. During wastewater extraction 15 through the barrier material collection space 20 into the pressure pipeline 34 are previously retained in the bulky material collecting space 20 Bulky substances 17 washed along and also arrive into the pressure pipeline. That during the described Conveying process simultaneously flowing waste water flows through the right bulky material collecting space 20 into the collecting container 30th

Fig. 2 und 3 zeigen in jeweils unterschiedlichen Betriebsstellungen den näheren Aufbau einer Schließvorrichtung 36 mit einer Zwangssteuerung. Die eigentliche Schließvorrichtung 36 ist durch zwei Kugeln 58 und 60 gebildet, die jeweils innerhalb eines Kugelgehäuses 62 senkrecht beweglich angeordnet sind. Das Kugelgehäuse 62 steht unten in Verbindung mit der Verbindungsleitung 24 und besitzt an seinem oberen Ende eine Austrittsöffnung 38 bzw. 40, durch welche der Zufluß von der Verbindungsleitung 24 durch das Kugelgehäuse 62 zum Sammelbehälter 20 durch die Kugeln 58, 60 freigegeben oder gesperrt ist. 2 and 3 each show different Operating positions the closer structure of a locking device 36 with positive control. The real one Locking device 36 is by two balls 58 and 60 formed, each within a ball housing 62nd are arranged vertically movable. The ball housing 62 is connected below to the connecting line 24 and has an outlet opening at its upper end 38 or 40 through which the inflow from the connecting line 24 through the ball housing 62 to the collecting container 20 is released or blocked by the balls 58, 60.

Den beiden Kugeln 58, 60 ist eine gemeinsame Wippe 50 mit jeweils einem Betätigungsarm 52 und 54 zugeordnet. Die Wippe 50 ist um einen Gelenkpunkt 56 schwenkbar und bildet eine mechanische Kopplung zwischen den beiden Kugeln 58 und 60.The two balls 58, 60 have a common rocker 50 each assigned to an actuating arm 52 and 54. The Rocker 50 is pivotable about a hinge point 56 and forms a mechanical coupling between the two balls 58 and 60.

Die mechanische Kopplung zwischen den beiden Kugeln 58 und 60 führt zu einer Zwangssteuerung. Wenn nämlich gemäß Fig. 2 die der linken Verbindungsleitung zugeordnete und hier nicht dargestellte Pumpe in Betrieb ist und Abwasser aus dem Sammelbehälter fördert, bewegt sich die Kugel 58 nach oben und verschließt die Austrittsöffnung 38. Über den Kontakt mit dem Betätigungsarm 52 wird gleichzeitig die Wippe 50 verschwenkt und der andere Betätigungsarm 54 bewegt die andere Kugel 60 nach unten, wodurch in dem rechten Kugelgehäuse 52 die Austrittsöffnung 40 zum Sammelbehälter zwangsläufig und automatisch freigegeben wird. Fig. 3 zeigt die andere mögliche Betriebsposition. Hier ist die der rechten Verbindungsleitung 24 zugeordnete Pumpe in Betrieb, und über die Wippe 50 und den Betätigungsarm 52 wird die Kugel 58 nach unten bewegt und damit die linke Austrittsöffnung 38 in dem linken Kugelgehäuse 62 freigegeben. Wenn daher die eine der beiden Austrittsöffnungen verschlossen ist, ist die andere Austrittsöffnung zwangsläufig und automatisch freigegeben und durchlässig.The mechanical coupling between the two balls 58 and 60 results in override control. If namely according to Fig. 2 assigned to the left connecting line and Pump not shown here is in operation and sewage conveys out of the collection container, the ball 58 moves upwards and closes the outlet opening 38 contact with the actuating arm 52 becomes simultaneous the rocker 50 swivels and the other actuating arm 54 moves the other ball 60 down, causing in the right ball housing 52 the outlet opening 40 to Collection container automatically and automatically released becomes. Fig. 3 shows the other possible operating position. Here is the one assigned to the right connecting line 24 Pump in operation, and the rocker 50 and the Actuator arm 52 moves the ball 58 down and thus the left outlet opening 38 in the left ball housing 62 released. So if the one of the two Outlet openings is closed, is the other outlet opening automatically and automatically released and permeable.

Ein weiteres Ausführungsbeispiel ist in Fig. 4 und 5 dargestellt. Die Austrittsöffnungen 38, 40 sind einander im Abstand gegenüberliegend angeordnet, und die beiden Kugeln 58 und 60 sind starr über eine Stange 64 miteinander verbunden.Another exemplary embodiment is shown in FIGS. 4 and 5 shown. The outlet openings 38, 40 are mutually spaced apart, and the two Balls 58 and 60 are rigid with one another via a rod 64 connected.

Die unterschiedlichen Betriebsstellungen in Fig. 4 und Fig. 5 verdeutlichen, daß wegen der starren Verbindung über die Stange 64 gewährleistet ist, daß bei geschlossener Austrittsöffnung 40 die andere Austrittsöffnung 38 zwangsweise freigegeben ist (Fig. 4) und umgekehrt (Fig. 5).The different operating positions in Fig. 4 and Fig. 5 illustrate that because of the rigid connection The rod 64 ensures that when closed Exit opening 40 the other exit opening 38 is forcibly released (Fig. 4) and vice versa (Fig. 5).

Die in Fig. 2 bis 5 dargestellten Ausführungsformen werden bevorzugt eingesetzt, wenn die Pumpen als Kreiselpumpen ausgebildet sind und große Volumenströme bzw. große Mengen von Abwasser auftreten. Dies bedeutet z. B. bei der in Fig. 3 gezeigten Darstellung, daß über die linke Verbindungsleitung 24 fließendes Abwasser über die geöffnete Austrittsöffnung 38 in den Sammelbehälter fließen kann, und daß gleichzeitig auch ein Teil des Abwassers durch die Kreiselpumpe selbst in den Sammelbehälter gelangt, wobei das Laufrad der Kreiselpumpe von eventuellen Ablagerungen freigespült werden kann. Wegen der großen Volumenströme genügt es, die Kugeln 58 und 60 durch den Abwasserförderstrom selbst zu beeinflussen, wobei dann in der beschriebenen Weise die eine Kugel über die mechanische Kopplung mittels der Wippe 50 zwangsläufig auf die andere Kugel einwirkt.The embodiments shown in Figs. 2 to 5 are preferred if the pumps are used as Centrifugal pumps are designed and large volume flows or large amounts of waste water occur. this means z. B. in the illustration shown in Fig. 3 that about the left connecting pipe 24 flowing waste water the opened outlet opening 38 into the collecting container can flow, and that at the same time also part of the Waste water through the centrifugal pump itself into the collection container arrives, the impeller of the centrifugal pump from any deposits can be washed away. Because of the large volume flows suffice for balls 58 and 60 influenced by the wastewater flow itself then in the manner described the one ball over the mechanical coupling by means of the rocker 50 is inevitable acts on the other ball.

Bei der in Fig. 6 und 7 dargestellten Ausführungsform einer Schließvorrichtung 36 werden die Kugeln 58, 60 demgegenüber von einer Steuervorrichtung 42 beeinflußt und gesteuert. Die Steuervorrichtung 42 besitzt eine untere Schubstange 44, die über ein Gelenk 46 mit der Wippe 50 bzw. dem Betätigungsarm 54 verbunden ist. Beim Einschalten einer der beiden Pumpen wird die Schubstange 44 entweder in Richtung des Pfeiles G nach unten (Fig. 6) oder in Richtung des Pfeiles H nach oben (Fig. 7) bewegt. Damit nimmt die Wippe 50 zwangsläufig eine der beiden in Fig. 6 und 7 gezeigten Positionen ein, in denen ihre Betätigungsarme 52 und 54 auf die Kugeln 58 bzw. 60 einwirken und die Austrittsöffnungen 38, 40 entweder freigeben oder schließen. Wegen der Zwangssteuerung ist dabei wiederum die eine Austrittsöffnung 38, 40 geschlossen, während die jeweils andere Austrittsöffnung 38, 40 automatisch freigegeben ist. In the embodiment shown in FIGS. 6 and 7 A locking device 36, in contrast, the balls 58, 60 influenced by a control device 42 and controlled. The control device 42 has a lower one Push rod 44, which is connected to rocker 50 via a joint 46 or the actuating arm 54 is connected. When switching one of the two pumps will push rod 44 either in the direction of arrow G down (Fig. 6) or moved in the direction of arrow H (Fig. 7). Thus, the rocker 50 inevitably takes one of the two 6 and 7 positions shown in which their Actuate actuating arms 52 and 54 on balls 58 and 60, respectively and either release the outlet openings 38, 40 or close. Because of the forced control is there again the one outlet opening 38, 40 is closed, while the other outlet 38, 40 automatically is released.

Diese Ausführungsform wird beim Einsatz von Verdrängerpumpen bevorzugt, wenn die Abwassermenge nicht so groß ist. Ohne die zwangsweise Steuerung mittels der Steuervorrichtung 42 und der Schubstange 44 kann nämlich die Gefahr bestehen, daß die Kugeln 58, 60 wegen der vergleichsweise geringen Volumenströme des Abwassers nicht sicher ihre jeweiligen Schließstellungen einnehmen können, was durch die Steuervorrichtung 42 vermieden wird, die zusammen mit dem Einschalten einer der Pumpen jeweils betätigt wird.This embodiment is used when using positive displacement pumps preferred if the amount of waste water is not so large is. Without the forced control by the control device 42 and the push rod 44 can namely There is a risk that the balls 58, 60 because of the comparatively low volume flows of the wastewater safely assume their respective closed positions can what is avoided by the control device 42 that is, along with turning on one of the pumps is actuated in each case.

Auch in Fig. 6 und 7 ist hei geöffneter Austrittsöffnung 40 bzw. 38 die Verbindung zur betreffenden Pumpe nicht vollständig abgesperrt. Dies ist aber ohne Belang, da durch die Verdrängerpumpe wegen ihres besonderen Aufbaus in ihrer Ruheposition kein Abwasser hindurchströmen kann.6 and 7 there is also an open outlet opening 40 or 38 the connection to the pump in question completely cordoned off. But this is irrelevant by the positive displacement pump because of its special structure no wastewater can flow through in its rest position.

Allen dargestellten Ausführungsbeispielen liegt der Gedanke zugrunde, daß sich die Kugeln 58, 60 gegenseitig zwangsläufig über die Wippe 50 umsteuern, und zwar in Fig. 2 bis 5 mediumgesteuert, und in Fig. 6 und 7 durch Einwirkung der Steuervorrichtung 42.All of the illustrated embodiments are the Thought based that the balls 58, 60 each other inevitably change direction via the rocker 50, namely in 2 to 5 medium-controlled, and in Fig. 6 and 7 by Action of the control device 42.

Claims (7)

  1. Effluent raising plant (10) having two bulk solids collecting chambers (20), to which the effluent (15) laden with bulk solids (17) is led, and having a collecting vessel (30) for the pretreated effluent (15) rid of bulk solids (17), which effluent in the process of filling the collecting vessel (30) flows from each bulk solids collecting chamber (20) via an individual connecting pipe (24) into the collecting vessel (30), a pump (26) being assigned to each bulk solids collecting chamber (20) for discharging the collecting vessel (30) via the respective connecting pipe (24) and the respective bulk solids collecting chamber (20), the effluent delivery flow generated by the pump (26) in operation being pumped into a pressure pipe line, a closing device (36) furthermore being assigned to each connecting pipe (24), which device in the process of filling the collecting vessel (30) exposes an outlet opening (38; 40) in the connecting pipe (24) to the collecting vessel (30) and in the process of discharging the collecting vessel (30) by means of the pump (26) exposes the connection to the pump and closes the outlet opening, the outlet openings (38; 40) being alternately exposed or shut off by the closing devices (36) as a function of the prevailing operating condition, that is to say in the on or off condition of the pumps (26), by a positive control in such a way that the outlet opening (38; 40) assigned to the pump (26) in operation is shut off and the outlet opening (38; 40) assigned to the other, idle pump (26) is simultaneously and automatically exposed, characterized in that each of the two closing devices takes the form of a ball (58; 60), which is situated in a ball housing (62) fixed to the connecting pipes (24), the housing having the outlet opening (38; 40), and that the two balls (58; 60) being mechanically coupled together.
  2. Effluent raising plant according to Claim 1, characterized in that a common rocker (50) is assigned to the two balls (58; 60), which rocker can be pivoted by each of the two balls (58; 60) about a pivot point (56) into either limit position, in such a way that the ball (58; 60) shutting off the outlet opening (38; 40) actuates the rocker (50), with the result that the rocker (50) at the same time acts on the other ball (58; 60) so that this exposes the assigned outlet opening (38; 40).
  3. Effluent raising plant according to one of the preceding Claims 1 or 2, characterized in that the outlet openings (38; 40) are arranged opposite one another, that the two balls (58; 60) are rigidly connected together by a rod (64), that the ball (58; 60) shutting off the outlet opening (38; 40) acts by way of the rod (64) on the other ball (58; 60) so that the latter exposes the assigned outlet opening (38; 40).
  4. Effluent raising plant according to one or more of the preceding Claims 1 to 3, characterized in that the pumps (26) are designed as centrifugal pumps.
  5. Effluent raising plant according to Claim 2, characterized in that a control device (42), acting on the balls (58; 60) by way of the common rocker (50), is provided, which is operative when ever a pump (26) is switched on, and which at the switching-on of the one pump (26) acts on the balls (58; 60) in such a way that the one ball (58; 60), which is assigned to the one outlet opening (38; 40), which is shut off when the collecting vessel (30) is being discharged, is released and at the same time the other ball (58; 60) is forcibly brought into a position exposing the other outlet opening (38; 40) and held there.
  6. Effluent raising plant according to Claim 5, characterized in that the pumps (26) are designed as positive-displacement pumps.
  7. Effluent raising plant according to one or more of the preceding Claims 1 to 6, characterized in that the balls (58; 60) are composed of plastic.
EP19970120810 1996-12-06 1997-11-27 Wastewater pumping station Expired - Lifetime EP0846810B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19650625A DE19650625C1 (en) 1996-12-06 1996-12-06 Sewage-pumping system with sediment-collecting chambers
DE19650625 1996-12-06

Publications (3)

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EP0846810A2 EP0846810A2 (en) 1998-06-10
EP0846810A3 EP0846810A3 (en) 1999-04-28
EP0846810B1 true EP0846810B1 (en) 2002-08-28

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EP (1) EP0846810B1 (en)
AT (1) ATE222979T1 (en)
DE (2) DE19650625C1 (en)

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DE3607353A1 (en) * 1986-03-06 1987-09-10 Strate Maschf Sewage lifting unit
DE4029603C3 (en) * 1990-09-19 1997-05-07 Feluwa Pumpen Gmbh Conveying device for liquid media containing bulky substances, in particular waste water
DE19519305C2 (en) * 1995-05-26 2000-12-28 Strate Technologie Fuer Abwass Sewage lifting station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1860245A1 (en) 2006-03-10 2007-11-28 Hydro-Vacuum S.A. Sewage lifting station especially for domestic sewage

Also Published As

Publication number Publication date
EP0846810A3 (en) 1999-04-28
US5954484A (en) 1999-09-21
DE59708058D1 (en) 2002-10-02
EP0846810A2 (en) 1998-06-10
DE19650625C1 (en) 1997-11-13
ATE222979T1 (en) 2002-09-15

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