EP2329082B1 - Abwasserhebeanlage - Google Patents

Abwasserhebeanlage Download PDF

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Publication number
EP2329082B1
EP2329082B1 EP09778067.0A EP09778067A EP2329082B1 EP 2329082 B1 EP2329082 B1 EP 2329082B1 EP 09778067 A EP09778067 A EP 09778067A EP 2329082 B1 EP2329082 B1 EP 2329082B1
Authority
EP
European Patent Office
Prior art keywords
shut
wastewater
screen
bulky
material collecting
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.)
Active
Application number
EP09778067.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2329082A1 (de
Inventor
Michael Becker
Michael Schenker
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
Original Assignee
KSB AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Priority to PL09778067T priority Critical patent/PL2329082T3/pl
Publication of EP2329082A1 publication Critical patent/EP2329082A1/de
Application granted granted Critical
Publication of EP2329082B1 publication Critical patent/EP2329082B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates

Definitions

  • the invention relates to a wastewater lifting plant, with at least one bulk material collecting container with at least one arranged in its interior separating wire for thereby leading to and polluted waste materials wastewater, and at least one downstream of the bulk material collecting tank pump, which via at least one connecting line with shut-off with the Blocking container or regularly a barrier-contaminated container portion of the bulk material collecting container is connected, wherein the shut-off device is designed as a combined shut-off / screening device.
  • the equipped with a rake check valve is designed as elastic, horizontally arranged in the closed state and downwardly opening floating flap.
  • the individual computing bars of the rake fill only a part of the cross section of a connecting line.
  • the rake is provided on the side of the bulk substance collecting space with the non-return valve which covers the cross-section of the rake which is kept free of the rake bars.
  • a wastewater lifting plant will be part of the DE 196 50 625 C1 described in which outlet openings of a collecting container by closing devices depending on the respective operating state (on / off) are enabled or disabled. This should ensure a safe operation even in overload operable attack large amounts of wastewater with respect to the opening and closing of the outlet openings.
  • Wastewater lifting plants are generally used to raise waste water collected at the end of a wastewater storage space to a certain level. This is done in order to be able to treat the wastewater, for example, in a remote and higher-level wastewater treatment plant on.
  • wastewater for example, in a remote and higher-level wastewater treatment plant on.
  • such pumps can not convince in terms of efficiency ago and require relatively much drive energy, which is particularly disadvantageous today.
  • This pre-treated wastewater can now be processed easily with the help of the pump and in particular be raised to the desired level.
  • the solids retained by the separation screen are released from it.
  • the pump must be designed only for the pre-treated wastewater, thus can be designed much smaller than without upstream bulk storage container. Thereby Not only is the efficiency increased, but in particular the operating costs for such pumps can be kept low.
  • the invention is based on the technical problem of further developing such a wastewater lifting plant in such a way that even large amounts of waste water with solids therein are controlled.
  • a generic sewage lifting plant is characterized in the invention in that the separating screen and the shut-off / sieve are arranged at an angle to each other, the shut-off / sieve together with a connection flange and the separating screen forms a structural unit.
  • the dividing screen and the shut-off / screening device are arranged substantially perpendicular to each other.
  • shut-off device located in the connecting line not only ensures that the wastewater contaminated with blocking substances does not get into the liquid collecting container and thus the associated pump. Rather, the shut-off device according to the invention is flanked by an associated screening device, so that the combined shut-off / screening device only pre-treated wastewater in the liquid collecting container passes through the connecting line.
  • the contaminated wastewater with wastewater is not only passed through the separation screen inside the bulk material collection container, but also passes through the shut-off / screening device in said liquid collecting container.
  • the feed of prepurified wastewater into the said liquid / collecting container is ensured even if, for example, the separating sieve located inside the bulk material collecting container is so heavily occupied by solids that no further filtering action is observed.
  • the combined shut-off / screening device is designed as a structural unit of at least one butterfly valve and a sieve.
  • the sieve can also act as a stop for the butterfly valve.
  • the butterfly valve is a non-return valve, which is closed at the wastewater inlet.
  • the sieve is usually composed of one or more webs. These webs are usually placed at the edge of an opening associated with the butterfly valve. This opening is generally found in the bulk material collection container, in its barrier loaded (container) area above the separation screen. In the opening opens the connection line.
  • a barrier-free (container) region is realized, which is connected to the pump via a bypass designed as a bypass, just like the connecting line.
  • the procedure can also be reversed, as with reference to the description of the figures ( Fig. 5 ) will be explained in more detail.
  • the opening below the dividing screen is again in the barrier-contaminated area arranged. Above the dividing screen, on the other hand, there is the non-barrier area.
  • shut-off screen device is arranged inside the bulk material collection container, and that regularly in its Sperrstoffbelasted area.
  • the above-mentioned and designed as a bypass derivative can be integrated into the bulk material collection container. This applies in addition and optionally also for the connection line. Then the pump can be flanged on the outside of the bulk material collecting container. This results in a particularly compact design with the simultaneous possibility of easy replacement.
  • shut-off / screening device and the separating screen retain solids of comparable size, these are adapted to one another from their opening cross-section.
  • This opening cross-section is also consistent with a passage of the pump.
  • the shut-off / screening device and the separating screen ultimately provide the passage of the pump and thus the detail design of the pump and in particular its efficiency.
  • the shut-off / screening device form a structural unit together with a closure flange and possibly the separating screen.
  • the dividing screen is usually but not necessarily arranged obliquely in the bulk material collecting container.
  • the dividing screen can be easily fixed to said end flange or side flange of the bulky waste collection container.
  • the end flange or side flange may be equipped with Abstützstegen or support webs, which carry a flanschfernes end of the Trennsiebes. The flanschnahe end of the Trennsiebes, however, is connected to the said end flange or side flange.
  • the butterfly valve is connected via a joint to the bulk material collecting container or the end or side flange.
  • the joint may be a hinge or a rubber hinge.
  • the butterfly valve is usually covered by a coating, namely a plastic or rubber. As a result, the butterfly valve is protected from corrosion from the outset.
  • the butterfly valve has a stop which limits its opening angle in the sewage pumping operation. This ensures that the butterfly valve is immersed in the stream from the pre-treated wastewater, which by means of the pump from the liquid collecting container on the one hand in the non-barrier container area (via the discharge designed as a bypass) and on the other hand the barrier-contaminated container area (via the connecting line) promoted becomes.
  • both screens that is, both the separating screen and the sieve of the combined shut-off / screening device are rinsed in the waste water conveying process and freed from any solids which may adhere thereto.
  • a sewage lifting plant which is also able to process large quantities of wastewater contaminated with wastewater.
  • This is not only due to the fact that practically two sieves are used instead of one sieve. Rather, join these Also, as it were, separate lines are added to both sieves, which in each case connect the bulk material collecting container to the pump and ultimately to the liquid collecting container.
  • the pre-treated wastewater guided through the separating sieve inside the bulk material collecting container is supplied via the discharge or the bypass of the pump.
  • the combined shut-off / screening device according to the invention in conjunction with the connected connecting line, ensures that the wastewater pre-cleaned reaches the pump and, finally, the liquid collecting container. Consequently, two screens with two separate lines are available according to the invention, both communicating with the pump and finally with the liquid collecting tank.
  • the dividing screen inside the bulk material collecting container and the screen of the combined shut-off / screening device are arranged substantially at right angles to one another.
  • the dividing screen has a horizontal or nearly horizontal arrangement in the interior of the bulk material collecting container and subdivides the bulk material collecting container into the container region which is loaded with a barrier substance and the container region which is impermeable to packaging.
  • the sieve of the shut-off / screening device has a more or less vertical arrangement. This ensures that the sieve of the shut-off / screening device still works reliably and performs its function even if the separating sieve should already be occupied by solids due to gravity and clogged. Because of the more or less vertical arrangement of this sieve solids can not adhere to it by gravity.
  • the opening cross-section of the screen of the combined shut-off / screening device can be made variable within certain limits.
  • the screen of the shut-off / screening device consists of one or more webs, which are arranged at the edge of the opening in the bulk material collecting container.
  • This opening is usually found in the end flange or side flange, in the barrier-contaminated container area. From this opening, the wastewater pre-cleaned through the sieve passes directly into the connecting line connected to the opening and then the pump.
  • the webs surrounding the opening at the edge can in principle be arranged at different distances from each other.
  • a wedge-like or triangular opening cross-section is set in side view. This can be realized when the shut-off flap is not exactly aligned vertically in its closed and applied to the webs position, but has a predetermined by the webs and certain skew.
  • this triangular opening cross section the passage of solids is favored and facilitated, which are designed smaller than the maximum opening cross-section.
  • the functionality is further increased in combination with the other aspects.
  • a sewage lifting plant which has a particularly functional design.
  • the pump used is effectively protected from coarse solids, at least those that are retained by the shut-off / screening device, respectively the separation screen. This allows you to work with pumps that have a relatively small passage have, therefore, with a particularly high efficiency and accordingly low energy work.
  • the main benefits are the main benefits.
  • FIG. 1 shows a wastewater lifting plant with the essential components, which is largely the same as that described in the introduction EP 1 108 822 B1 is explained.
  • the sewage lifting plant shown may be located in a sewer well, not explicitly shown, preferably at its lowest point.
  • the wastewater shaft can be made of plastic, stone, steel or similar materials.
  • the basic structure of the sewage lifting plant includes an inlet manifold 1, on which wastewater in the Fig. 1 is fed from the left. This wastewater is contaminated with blocking substances or solids F, which are primarily in the Fig. 2 are shown. From the inlet manifold 1, the wastewater passes through a supply line 2 in a bulk material collecting container 3. In the bulk material collecting container 3, the wastewater is freed from the blocking substances F and undergoes a pre-cleaning.
  • the prepurified wastewater passes via a discharge line 4 to a pump 5 and from there into a liquid collecting tank 6.
  • the pre-cleaned waste water passes through the pump 5.
  • the pump in the exemplary embodiment is a centrifugal pump, which provides a corresponding passage or passage cross-section for the pre-treated wastewater.
  • a separating sieve 7 is responsible for this, which subdivides the bulky substance collecting container 3 into a region 3a which is contaminated with substances and a region 3b which is impermeable to the substance.
  • the solids F are collected in the barrier-loaded region 3a and retained at this point by the separation screen 7.
  • a combined shut-off / screening device 8, 9 added.
  • the combined shut-off / screening device 8, 9 is associated with a connecting line 10 or part thereof. With the help of the connecting line 10, the pump 5 and consequently also the liquid collecting container 6 is connected to the area 3b of the bulky substance collecting container 3 which is loaded with the substance.
  • the combined shut-off / screening device 8, 9 is designed as a unit consisting of a shut-off valve 8 and a sieve 9.
  • the sieve 9 - like the separating sieve 7 - ensures that the solids F are retained in the substance-contaminated area 3 a of the bulky substance collecting container 3.
  • the separating screen 7 is arranged substantially horizontally or slightly obliquely with respect to the horizontal.
  • the sieve 9 of the shut-off / screening device 8, 9 has a more or less vertical arrangement, so that the separating sieve 7 and the sieve 9 of the combined shut-off / sieve device 8, 9 are arranged at an angle, in particular almost at right angles to each other.
  • the wastewater contaminated with the solids F not only passes through the separating sieve 7 but also through the shut-off / screening device 8, 9 or its sieve 9 into a region without blocking substances F, namely finally via the pump 5 to the liquid phase. 6.
  • the two sieves 7, 9 or the separating sieve 7 and the sieve 9 of the combined shut-off / screening device 8, 9 are each designed so that they have an approximately equal (maximum) opening cross-section. This opening cross section is adapted to the passage or the passage cross section of the pump 5. This allows you to work with a pump 5 relatively high efficiency with low energy costs.
  • the screen 9 is constructed of several webs 9 for this purpose. These webs 9 at least partially surround an opening 11 in a closure flange or side flange 12 of the bulk material collecting container 3 (cf. Fig. 4 ). In this case, the webs 9 may be arranged equidistant from each other, as in the Fig. 4 is shown.
  • the opening 11 the pre-cleaned with the aid of the sieve 9 wastewater enters the connecting line 10 and the pump 5 finally in the liquid reservoir 6.
  • a further opening 13 in said end or side flange 12 ensures that the with the help of the separating screen 7 pre-treated wastewater via the discharge line 4 and the bypass 4 finally also flows through the pump 5 into the liquid collecting container 6.
  • both sieves 7, 9 hold back the solids F in the barrier-loaded region 3a of the bulk material collecting container 3.
  • both sieves 7, 9 have their own connecting lines, on the one hand, the connecting line 10 and on the other hand, the derivative 4, by means of which they are connected to the pump 5 and finally the liquid collecting container 6. This ensures that even with clogging of one of the two screens 7, 9, the other unchanged provides for the pre-cleaning of the wastewater and can also provide.
  • a flange-side edge of the separating screen 7 is connected to the end or side flange 12.
  • a flange-remote edge of the separating screen 7 is supported on support webs 14, which in turn are connected to the end or side flange 12.
  • the dividing screen 7 experiences the inclined position shown in the embodiment with respect to the horizontal, which of course is not mandatory.
  • the said assembly 7, 8, 9, 12 can be removed and cleaned from the bulk material collection container 3 without problems and in total, or repaired if necessary.
  • the butterfly valve 8 is connected via a hinge 15 to the bulk material collecting container 3, respectively, the end flange 12.
  • this joint 15 may be a conventional mechanical hinge or a rubber hinge, which uses the Gummigelenkmaschine of the butterfly valve 8 a total enclosing rubber sheath 16.
  • the joint 15 is designed to be non-rotatable, the butterfly valve 8 is connected with its rubber sheath 16 as it were firmly attached to the end flange 12.
  • the pump 5 can be connected directly to the end flange 12.
  • the end flange 12 opposite empties into the bulk material collecting tank 3 is still a pressure line D, at the end of which may already be mentioned in the introduction wastewater treatment plant.
  • the sewage lifting plant shown is constructed so that each of the assemblies shown two assemblies are realized, which are in the drawing plane one above the other in practice. In this respect, the comments on the EP 1 108 822 B1 to get expelled.
  • the sewage lifting plant is mainly made of stainless steel, which of course also represents only one option.
  • the solids F are retained in the barrier-loaded region 3a. This is ensured by the two sieves 7, 9 or the separating sieve 7 and the sieve 9 of the combined shut-off / sieve device 8, 9.
  • Precleaned waste water thus arrives in the impermeable area 3b of the bulky substance collecting container 3 and from there through the opening 13 in the discharge 4 and finally via the pump 5 in the liquid collecting container 6.
  • the pre-treated wastewater is separated from this and independently via the opening 11 in the connecting line 10, from there again into the pump 5 and finally the liquid collecting container. 6
  • the opening 13 of the discharge line 4 is assigned to the non-barrier region 3b of the bulky substance collecting container 3.
  • the butterfly valve 8 of the combined shut-off / screening device 8, 9 is closed and the pump is not actuated.
  • the pump 5 now conveys the prepurified wastewater from the liquid collecting container 6 via the discharge or the bypass 4 on the one hand in the non-barrier area 3b of the bulk material collecting container 3 and on the other hand via the connecting line 10 and the shut-off / screening device 8, 9 in the In this process, the butterfly valve 8 is opened as far as in the Fig. 3 is shown.
  • the butterfly valve 8 regularly has an only indicated stop 18, which limits its opening angle in this sewage production process. This ensures that the shut-off flap 8 is freed during conveying of the pre-cleaned wastewater of optionally adhering thereto solids F. The same applies to the sieve 9 of the shut-off / screening device 8, 9. In addition, the retained by the separating sieve 7 solids F are detached from this and ultimately conveyed via the pressure line D to the wastewater treatment plant. Because also as a check valve executed shut-off valve 17 in the supply line 2 is closed during operation of the pump 5 and the described sewage pumping operation.
  • the wastewater lifting plant differs from the previously described embodiments according to the Fig. 1 to 4 merely in that the separating screen 7 is placed above the shut-off / screening device 8, 9.
  • the separation screen 7 is found in the example of the Fig. 1 to 4 below the shut-off / screening device 8, 9.
  • the loaded with solids F wastewater passes not only on the separating sieve 7, but also through the shut-off / sieve 8, 9 unchanged in an area without substances F, namely in the liquid collecting container 6, on the one hand, the connecting line 10 and on the other hand, the opening 13 and the bypass 4.
  • Through the opening 13 passes through the pre-cleaned with the help of Absperr- / Sieb driving 8, 9 wastewater into the connecting line 10.
  • the pre-cleaned by the separating sieve 7 enters directly into the connecting line 10 a and arrives in total from there into the liquid collecting container 6.
  • the pump 5 conveys the pre-treated wastewater from the liquid collecting container 6 on the one hand via the discharge or the bypass 4 and the shut-off / sieve 8, 9 in the contaminated area 3a of the bulk material collecting container 3.
  • the promotion of prepurified waste water via the connecting line 10 in the non-barrier area 3b of the bulk material collection container.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Filtration Of Liquid (AREA)
  • Sewage (AREA)
EP09778067.0A 2008-08-25 2009-08-24 Abwasserhebeanlage Active EP2329082B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09778067T PL2329082T3 (pl) 2008-08-25 2009-08-24 Urządzenie podnoszące ścieki

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008011273U DE202008011273U1 (de) 2008-08-25 2008-08-25 Abwasserhebeanlage
PCT/EP2009/006119 WO2010025852A1 (de) 2008-08-25 2009-08-24 Abwasserhebeanlage

Publications (2)

Publication Number Publication Date
EP2329082A1 EP2329082A1 (de) 2011-06-08
EP2329082B1 true EP2329082B1 (de) 2015-02-25

Family

ID=39917858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778067.0A Active EP2329082B1 (de) 2008-08-25 2009-08-24 Abwasserhebeanlage

Country Status (5)

Country Link
EP (1) EP2329082B1 (da)
DE (1) DE202008011273U1 (da)
DK (1) DK2329082T3 (da)
PL (1) PL2329082T3 (da)
WO (1) WO2010025852A1 (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2946062B1 (fr) * 2009-05-26 2014-06-06 H M T Separateur de matieres, notamment pour poste de relevage d'eaux usees, et poste de relevage en comportant application
DE202010001472U1 (de) 2009-12-30 2010-05-06 Becker Elektromaschinenbau Gmbh Abwasserhebeanlage
CN102345322A (zh) * 2010-07-30 2012-02-08 吴海 一种排污提升设备
DE102013213709A1 (de) * 2013-07-12 2015-01-15 Ksb Aktiengesellschaft Abwasserhebeanlage
DE102013221065A1 (de) 2013-10-17 2015-04-23 Ksb Aktiengesellschaft Verfahren zum Erstellen einer Abwasserhebeanlage in einem Abwasserschacht sowie zugehörige Abwasserhebeanlage
DE102015103808A1 (de) 2015-03-16 2016-09-22 STRATE Technologie für Abwasser GmbH Filtervorrichtung für eine Förderanlage zur Förderung von sperr- und/oder feststoffhaltigen Flüssigkeiten
DE102018207243A1 (de) 2018-05-09 2019-11-14 KSB SE & Co. KGaA Abwasserhebeanlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR752942A (fr) 1932-07-12 1933-10-03 Pompes Et Compresseurs Baudot Installation de pompage des eaux chargées d'impuretés
DE1609166B1 (de) 1966-07-19 1970-07-09 Wilfried Strate Abwasserhebewerk
DE2822877C2 (de) * 1978-05-26 1986-07-31 Cremer & Kreuseler, 4044 Kaarst Hebevorrichtung für mit Dickstoffen versetzte Abwässer o.dgl.
DE29505028U1 (de) * 1995-03-17 1995-07-27 Börner, Wolf-Dieter, 32457 Porta Westfalica Abwasserhebeanlage
DE19650625C1 (de) 1996-12-06 1997-11-13 Strate Maschf Abwasserhebeanlage
DE59903198D1 (de) 1999-12-17 2002-11-28 Michael Becker Abwasserhebeanlage

Also Published As

Publication number Publication date
WO2010025852A1 (de) 2010-03-11
EP2329082A1 (de) 2011-06-08
PL2329082T3 (pl) 2015-08-31
DE202008011273U1 (de) 2008-10-30
DK2329082T3 (da) 2015-05-26

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