EP1731684B1 - Procédé de levage d'eau usée et dispositif de levage d'eau usée - Google Patents

Procédé de levage d'eau usée et dispositif de levage d'eau usée Download PDF

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Publication number
EP1731684B1
EP1731684B1 EP06011987.2A EP06011987A EP1731684B1 EP 1731684 B1 EP1731684 B1 EP 1731684B1 EP 06011987 A EP06011987 A EP 06011987A EP 1731684 B1 EP1731684 B1 EP 1731684B1
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EP
European Patent Office
Prior art keywords
centrifugal pump
sewage
rotational speed
sewage lifting
plant
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.)
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Application number
EP06011987.2A
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German (de)
English (en)
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EP1731684A1 (fr
Inventor
Jürgen Gröschel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB AG
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KSB AG
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Publication date
Application filed by KSB AG filed Critical KSB AG
Priority to PL06011987T priority Critical patent/PL1731684T3/pl
Priority to SI200631871T priority patent/SI1731684T1/sl
Publication of EP1731684A1 publication Critical patent/EP1731684A1/fr
Application granted granted Critical
Publication of EP1731684B1 publication Critical patent/EP1731684B1/fr
Priority to CY20151100073T priority patent/CY1115957T1/el
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply

Definitions

  • the invention relates to a method for adjustment and operation of a equipped with a centrifugal pump sewage lifting plant, which serves to promote fäkalien inconveniencem or faecal-free wastewater and optionally of surface water in a channel system, wherein the preferably via a check valve, in particular a non-return valve in a pipeline to be pumped wastewater occurs below a defined backflow level for the channel system, and wherein a minimum flow rate is specified for the promotion.
  • the invention relates to the wastewater lifting plant itself.
  • Wastewater lifting plants which have to promote accumulating water below the backflow level of a sewer system, are usually arranged in residential buildings. Above all, they serve to extract sewage-containing wastewater, which accumulates in the cellars of such residential buildings. Therefore, they are often referred to as Hurkalienhebeanlagen.
  • the existing geodetic head and the dynamic losses due to the flow are determined first. Based on this data, a pipeline characteristic is determined. Now, the minimum and maximum flow rates are calculated from the minimum and maximum flow rates prescribed by the standard and entered in a prepared diagram. In the diagram, the characteristics of several available lifting systems are conveniently drawn. One within the permissible range, the point of intersection between the lifting system and the piping characteristic gives the sought-after indication of a suitable lifting system.
  • the invention has for its object to provide a method that overcomes the indicated problems of interpretation and provides a particular application adapted and working without disturbing noise sewage lifting system.
  • This object is achieved for a system of the type mentioned according to the invention by a method which initially determined for different significant operating points rotational speeds of the centrifugal pump with the help of one equipped with a programmable frequency converter, the centrifugal pump driving electric motor in a fully installed lifting system, which together with the resulting data stored in a central unit controlling the plant and their further operation are based.
  • the inventive method determined by itself all relevant parameters of the concrete system and adjusts the lifting system accordingly.
  • This self-adjustment has the advantage that the lifting system is operated in the optimum flow velocity range and thus do not cause the mentioned noise.
  • the control used for self-adjustment can additionally take on a variety of monitoring tasks to self-help.
  • An expedient embodiment of the method according to the invention provides that when a first or recommissioning of sewage lifting the centrifugal pump is ramped up to a maximum speed and turned off before reaching a still suitable for promoting minimum sewage levels, then switched on with closed check member, the centrifugal pump again and whose speed is steadily increased, the speed reached when opening the check member is stored as the zero speed corresponding height speed, whereupon the predetermined minimum flow speed corresponding speed is determined and stored.
  • the determination of the predetermined minimum flow speed corresponding speed can be done in different ways.
  • the speed can be determined by calculation.
  • the system characteristic curve defined by the determined zero-point delivery head
  • the pump characteristic curve are cut at a quantity point which corresponds to the minimum flow rate.
  • the speed in question can also be determined by a flow meter arranged in the pipeline. Conveniently, a non-return valve designed according to the dynamic pressure principle is used as a flow meter.
  • a lifting system operating with the method according to the invention is also capable of undertaking monitoring tasks during operation.
  • the method recognizes due to a suitably designed evaluation scheme, a blockage of the check member or a flow disturbance in the pipeline, and it can derive a remedial action.
  • a detected disturbance of the flow the speed of the centrifugal pump can be increased, so to speak, a purge flow caused. Only after exceeding a predetermined period of time, a shutdown signal and / or a warning signal is then given to persist the fault.
  • a sewage lifting plant using a method according to the invention with a centrifugal pump for conveying sewage-containing or faecal-free wastewater and / or surface water into a sewer system has an electric motor equipped with a programmable frequency converter for driving the centrifugal pump.
  • the non-return valve connected downstream of the centrifugal pump may be equipped with a sensor which signals the opening of the non-return valve. It is also advantageous when using the method according to the invention if the non-return valve can be used as a flow meter according to the dynamic pressure principle. This facilitates the adjustment, since this can be used to determine the achievement of the prescribed minimum flow rate. In addition, a constant control of the operation of the lifting system is possible with the flow meter.
  • the EP 1 138 950 A1 discloses a pressure booster to which consumers are connected.
  • a liquid pump is driven by an electric motor and a controller is used to compare an actual value of an output pressure of the liquid pump with a predetermined setpoint of Output pressure.
  • the controllability of the pump power by varying the pump drive speed is used to cover fluctuating consumption values at constant pressure or sliding pressures according to predetermined criteria.
  • this is placed in a kind of oscillating state in which consumption levels near zero, the actual value exceeds the setpoint of the pressure, resulting in a Abregeln the engine and thus to a pump shutdown.
  • the initially described problems of a sewage lifting plant is promoted in the sewage or surface water in a sewer system, are by the EP 1 138 950 A1 unsolved.
  • DE 35 20 538 A discloses a plant for the delivery of milk, wherein a centrifugal pump is designed with frequency converter. The control of the plant deals with the problem of cavitation.
  • the in the Fig. 1 shown system is arranged for the most part below the backflow level 1, which is characterized here by a triangle.
  • the plant comprises a collecting container 2, which is connected to a sewer line 3, and a delivery line 4, which opens into a sewer 5.
  • a - not shown - centrifugal pump is arranged, which promotes from the sewer 3 flowing fäkalalien Vietnameses and fäkalientransports wastewater via a check valve 6 in the sewer 5.
  • the method according to the invention not only eliminates problems with the design. This procedure also allows plant operation with continuous self-checking and automatic correction of minor disturbances, which, if not remedied, could lead to major disruptions or even equipment failure. This is based on in the Fig. 3 outlined sewage lifting unit explains:
  • the lifting system is equipped with a centrifugal pump 8 whose electric motor 9 is provided with a programmable frequency converter 10.
  • the centrifugal pump 8 can therefore be operated at different speeds.
  • the centrifugal pump 8 is followed by a check valve 11, which is equipped with an opening of the check valve 11 reporting sensor.
  • the Lifting system has a collecting container 12, in which a level sensor 13 is provided, which responds to three different preset fluid levels: at a minimum fluid level, it gives the signal “Abpump sunny OFF", at a normal high water level, it gives the signal “Abpump sunny day”, and at a he reports "flood ALARM" the water level exceeding the latter level.
  • the centrifugal pump 8 is raised again on a speed ramp, wherein the speed is stored at which the sensor of the check valve 11 "Open" reports.
  • the speed stored here is directly related to the zero-point head, which in turn corresponds to the geodetic head.
  • the lifting system is adjusted for further operation.
  • the method according to the invention is also suitable to optimize this further operation and to protect against various disturbances:
  • the method can be used to effect a gentle closing of the non-return valve 11 by shutting down the centrifugal pump 8 via a speed ramp.
  • the system operating with the method or the control equipped accordingly is capable of detecting a blockage of the non-return valve 11 or an incipient clogging within the hydraulic part and reacting appropriately thereto. If a short-term speed increase with the flushing effect achieved thereby is not sufficient to eliminate the fault, the system can trigger a warning and / or a switch-off signal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Claims (12)

  1. Procédé de réglage et de conduite d'une installation de levage d'eaux usées équipée d'une pompe centrifuge, qui sert pour le refoulement d'eaux usées contenant des matières fécales ou libres de matières fécales et éventuellement d'eaux de surface dans un système d'égout, dans lequel les eaux usées à refouler arrivent, via un organe articulé (6, 11), en particulier un clapet articulé, dans une conduite (4) de préférence en dessous d'un plan de retenue (1) défini pour le système d'égout (5), et dans lequel une vitesse d'écoulement minimale est prédéterminée pour le refoulement, caractérisé en ce que, pour une installation de levage complètement installée, on détermine d'abord les vitesses de rotation importantes de la pompe centrifuge (8) pour différents points de fonctionnement marquants - hauteur géodésique maximale, y compris les pertes dynamiques, hauteur de refoulement géodésique et réalisation de la vitesse d'écoulement minimale prescrite - à l'aide d'un moteur électrique (9) entraînant la pompe centrifuge (8) et équipé d'un convertisseur de fréquence programmable (10), puis on mémorise les données qui en résultent dans une unité centrale commandant l'installation et on les utilise comme base pour la conduite ultérieure, et on trace la courbe caractéristique de l'installation de levage d'eaux usées en utilisant les données déterminées et on détermine, à l'aide de cette courbe caractéristique, la vitesse de rotation correspondant à la vitesse d'écoulement minimale prédéterminée.
  2. Procédé selon la revendication 1, caractérisé en ce que, lors d'une première ou d'une nouvelle mise en service de l'installation de levage d'eaux usées, on accélère la pompe centrifuge (8) en continu jusqu'à une vitesse de rotation maximale et on la coupe avant d'atteindre un niveau d'eaux usées minimal convenant encore pour le refoulement puis, avec l'organe articule (11) fermé, on enclenche de nouveau la pompe centrifuge (8) et on accélère en continu sa vitesse de rotation, dans lequel on mémorise la vitesse de rotation atteinte lors de l'ouverture de l'organe articule (11) comme étant la vitesse de rotation correspondant à la hauteur de refoulement au point zéro, et on détermine ensuite et on mémorise la vitesse de rotation correspondant à la vitesse d'écoulement minimale prédéterminée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on détermine la vitesse de rotation correspondant à la vitesse d'écoulement minimale prédéterminée au moyen d'un débitmètre disposé dans la conduite.
  4. Procédé selon la revendication 3, caractérisé en ce que l'on utilise comme débitmètre un clapet articule (11) travaillant suivant le principe de la pression de la retenue.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on effectue la coupure de la pompe centrifuge (8) à l'aide d'une rampe de vitesse de rotation préréglée.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé par un schéma d'exploitation identifiant un blocage de l'organe articulé (11), comportant une action qui en découle.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé par un schéma d'exploitation identifiant une perturbation de l'écoulement dans la conduite (4), comportant une action qui en découle.
  8. Procédé selon la revendication 6 ou 7, caractérisé en ce que, en cas de perturbation constatée de l'écoulement, on augmente la vitesse de rotation de la pompe centrifuge (8), dans lequel, après expiration d'un laps de temps prédéterminé et en cas de persistance de la perturbation, on émet un signal de coupure et/ou un signal d'alerte.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, en cas de passage du débit de refoulement dans un domaine de charge de pointe, on procède à une augmentation de la vitesse de rotation, la vitesse d'écoulement admissible étant chaque fois respectée.
  10. Installation de levage d'eaux usées pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 9, dans laquelle l'installation de levage d'eaux usées comprend un réservoir collecteur (2) raccordé à une conduite d'eaux usées (3) et une conduite de refoulement (4) débouchant dans un canal d'eaux usées (5), dans laquelle l'installation de levage d'eaux usées est équipée d'une unité centrale commandant l'installation de levage d'eaux usées et d'une pompe centrifuge (8), dont le moteur électrique (9) est muni d'un convertisseur de fréquence programmable (10), et dans laquelle un clapet articulé (11) prévu dans la conduite de refoulement (4) est installé en aval de la pompe centrifuge (8), caractérisée en ce que la pompe centrifuge (8) est disposée dans le réservoir collecteur (2) et est exploitée conformément au procédé selon l'une quelconque des revendications 1 à 9.
  11. Installation de levage d'eaux usées selon la revendication 10, caractérisée en ce que le clapet articulé (6) est équipé d'un capteur signalant son ouverture.
  12. Installation de levage d'eaux usées selon la revendication 10 ou 11, caractérisée en ce que le clapet articulé (6) est configuré en débitmètre selon le principe de la pression de la retenue.
EP06011987.2A 2005-06-11 2006-06-10 Procédé de levage d'eau usée et dispositif de levage d'eau usée Active EP1731684B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL06011987T PL1731684T3 (pl) 2005-06-11 2006-06-10 Sposób eksploatacji urządzenia do przetłaczania ścieków i urządzenie eksploatowane tym sposobem
SI200631871T SI1731684T1 (sl) 2005-06-11 2006-06-10 Postopek obratovanja naprave za prečrpavanje odpadnih voda in naprava za prečrpavanje odpadnih voda, ki obratuje po tem postopku
CY20151100073T CY1115957T1 (el) 2005-06-11 2015-01-23 Μεθοδος λειτουργιας για ενα συστημα ανυψωσης υγρων λυματων και συστημα που λειτουργει με τη μεθοδο αυτη

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005027091A DE102005027091A1 (de) 2005-06-11 2005-06-11 Betriebsverfahren für eine Abwasserhebeanlage und mit diesem Verfahren betriebene Anlage

Publications (2)

Publication Number Publication Date
EP1731684A1 EP1731684A1 (fr) 2006-12-13
EP1731684B1 true EP1731684B1 (fr) 2014-10-29

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Family Applications (1)

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EP06011987.2A Active EP1731684B1 (fr) 2005-06-11 2006-06-10 Procédé de levage d'eau usée et dispositif de levage d'eau usée

Country Status (8)

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EP (1) EP1731684B1 (fr)
CY (1) CY1115957T1 (fr)
DE (1) DE102005027091A1 (fr)
DK (1) DK1731684T3 (fr)
ES (1) ES2526197T3 (fr)
PL (1) PL1731684T3 (fr)
PT (1) PT1731684E (fr)
SI (1) SI1731684T1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573287A1 (fr) * 2011-09-22 2013-03-27 Grundfos Holding A/S Installation de relèvement d'eaux usées
DE102012006444A1 (de) * 2012-03-30 2013-10-02 Wilo Se Verfahren zum Betreiben eines Pumpenaggregats
CN103967108A (zh) * 2014-05-30 2014-08-06 中国建筑标准设计研究院有限公司 一种机房室内上排水系统及其使用方法
DE102015010512A1 (de) 2015-08-12 2017-02-16 Wilo Se Abwassersammelbehälter für eine Abwasserhebeanlage
DE102015010510A1 (de) 2015-08-12 2017-02-16 Wilo Se Abwassersammelbehälter für eine Abwasserhebeanlage
DE102015010509A1 (de) 2015-08-12 2017-02-16 Wilo Se Abwassersammelbehälter für eine Abwasserhebeanlage
CN105347410A (zh) * 2015-12-04 2016-02-24 天津邦盛净化设备工程有限公司 小型工业废水处理装置的控制系统
DE102016109907A1 (de) * 2016-05-27 2017-11-30 Bilfinger Water Technologies Gmbh Verfahren zum Betrieb einer Vakuumpumpe sowie Vakuumpumpenanordnung
CN107605004B (zh) * 2017-09-30 2024-03-26 武汉圣禹排水系统有限公司 一种带有泵排的排水系统及排水控制方法
DE102018118065B4 (de) * 2018-07-26 2023-08-10 Kriwan Industrie-Elektronik Gmbh Verfahren zum Betreiben einer Maschine mit einer Motorschutzeinrichtung
CN112211829A (zh) * 2020-10-12 2021-01-12 林海涛 一种水泵内置调控压力装置

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3520538A1 (de) * 1985-06-07 1986-12-11 Kraftwerk Union AG, 4330 Mülheim Verfahren und einrichtung zum betrieb einer kreiselpumpe

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SE336307B (fr) * 1970-02-16 1971-06-28 Dopslaff Kg J
DE2913970A1 (de) * 1979-04-04 1980-10-23 Hubert Combe Steuerung fuer eine abwasser- und faekalienhebeanlage
US5113901A (en) * 1991-09-09 1992-05-19 Young Jack W Sewer relief valve
US5668457A (en) * 1995-06-30 1997-09-16 Martin Marietta Corporation Variable-frequency AC induction motor controller
US5883489A (en) * 1996-09-27 1999-03-16 General Electric Company High speed deep well pump for residential use
ATE257548T1 (de) * 2000-03-27 2004-01-15 Vogel Pumpen Pumpensteuergerät
DE10331578B4 (de) * 2003-07-11 2006-01-12 Spechtenhauser Pumpen Gmbh Abwasserpumpensystem mit mehreren Kanalradpumpenaggregaten

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3520538A1 (de) * 1985-06-07 1986-12-11 Kraftwerk Union AG, 4330 Mülheim Verfahren und einrichtung zum betrieb einer kreiselpumpe

Also Published As

Publication number Publication date
EP1731684A1 (fr) 2006-12-13
DE102005027091A1 (de) 2006-12-14
PT1731684E (pt) 2015-01-13
CY1115957T1 (el) 2017-01-25
PL1731684T3 (pl) 2015-04-30
ES2526197T3 (es) 2015-01-08
SI1731684T1 (sl) 2015-01-30
DK1731684T3 (da) 2015-01-19

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