EP0744504A1 - Installation élévatoire d'eaux usées - Google Patents

Installation élévatoire d'eaux usées Download PDF

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Publication number
EP0744504A1
EP0744504A1 EP96102623A EP96102623A EP0744504A1 EP 0744504 A1 EP0744504 A1 EP 0744504A1 EP 96102623 A EP96102623 A EP 96102623A EP 96102623 A EP96102623 A EP 96102623A EP 0744504 A1 EP0744504 A1 EP 0744504A1
Authority
EP
European Patent Office
Prior art keywords
flow
flap
flap opening
collecting container
wastewater
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.)
Granted
Application number
EP96102623A
Other languages
German (de)
English (en)
Other versions
EP0744504B1 (fr
Inventor
Jörg Hasse
Dieter Feigenspan
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.)
Strate Maschinenfabrik fur Abwassertechnik GmbH
Strate Technologie fuer Abwasser GmbH
Original Assignee
Strate Maschinenfabrik fur Abwassertechnik GmbH
Strate Technologie fuer Abwasser GmbH
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 Strate Maschinenfabrik fur Abwassertechnik GmbH, Strate Technologie fuer Abwasser GmbH filed Critical Strate Maschinenfabrik fur Abwassertechnik GmbH
Publication of EP0744504A1 publication Critical patent/EP0744504A1/fr
Application granted granted Critical
Publication of EP0744504B1 publication Critical patent/EP0744504B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a sewage lifting plant according to the preamble of claim 1.
  • sewage lifting plants are known from DE-PS 21 15 106 and from DE 36 07 353 C2.
  • the purpose of these wastewater lifting plants is to absorb the wastewater generated in residential complexes, for example, and to pump them from a low level to a higher level via a pressure pipe.
  • the wastewater initially flows into a bulky material collection space, in which the bulky substances carried in the wastewater are retained by separating flaps, with each separating flap being assigned a flap opening.
  • the flap opening through the partition flap is not complete, but only partially closed.
  • the precleaned wastewater thus cleaned then flows through the remaining free part of the flap openings into a collection container.
  • the pump When the collection container is filled, the pump is switched on via a level-dependent switch and the pre-cleaned wastewater is now conveyed through the flap openings, which are now completely released from the partition flaps, and through the bulky material collection space into a pressure pipe to the sewage system.
  • the bulky substances retained in the bulky material collection area are taken away and also flushed into the pressure pipeline.
  • the inlet line leading into the bulk material collection space is blocked off.
  • the invention has for its object to improve the functional reliability of a sewage lifting plant and to avoid blockages in the bulky material collecting space.
  • the invention is based on the finding that, in the known sewage lifting system, the flow of waste water regularly empties through the lower flap opening into the barrier material collecting space when the collecting container is emptied, and that practically no portion of the flow passes through the upper flap opening into the barrier material collecting space.
  • different forms are formed in the barrier material collecting space in the region of the two flap openings Express with a negative pressure in the area of the upper flap opening. This pressure difference leads to the swirling of the delivery flow within the barrier material collecting space on the way to the pressure pipeline, the swirls causing the disadvantages described above.
  • the invention provides between the collecting container and the bulky material collecting means by which it is achieved that pressure differences in the bulky material collecting space between the upper flap opening and the lower flap opening are largely eliminated and ideally no longer occur when the collecting container is emptied. This is because there is a defined distribution of the flow and the proportions of the flow that flow through the upper and lower flap opening can be selected so that pressure differences are at least largely reduced, and so that no turbulence in the flow in the bulky material collection space occurs.
  • the invention In addition to avoiding clogging of the bulk material collecting space, the invention also achieves a further advantage, which is that the efficiency of the sewage lifting system is significantly improved when emptying. Due to the clear flow pattern in the bulk material collection space and because of the turbulence thus avoided, it is ensured that the amount of liquid pumped out of the collection container by the pump reaches the pressure pipeline with only slight flow losses.
  • means are provided by which the flow of the wastewater when emptying the collecting container is influenced and divided in such a way that a predetermined, defined proportion of wastewater flows into the bulk material collecting space also via the upper flap opening.
  • This defined distribution of the flow rate causes one significant reduction in the pressure differences in the bulk material collection space that the disadvantageous turbulence is practically prevented.
  • a division has proven to be particularly expedient in which approximately 30% of the flow rate flows through the upper and approximately 70% of the flow rate flows through the lower flap opening when the collecting container is emptied.
  • the two flap openings on the side facing away from the bulk material collecting space is adjoined by a chamber which is common to the two flap openings and opens into the connecting line to the collecting container.
  • the means for influencing the distribution of the flow are formed by a flow baffle located in the chamber. The latter is preferably located at the upper edge of the lower flap opening and extends at an angle into a part of the common chamber.
  • the known sewage lifting plant 10 shown in FIG. 1 is first explained below.
  • the sewage lifting unit 10 is shown in a view that is unfolded along the line of symmetry 48 in order to explain the filling and emptying more clearly.
  • the parts to the left and right of the line of symmetry 48 are located one above the other in the plane of the drawing.
  • the wastewater 15, including the barrier materials 17 carried along flows into the barrier material collecting spaces 20 via a distributor 18.
  • This filling process is illustrated in the right part of the drawing in addition to the line of symmetry 48.
  • the wastewater 15 with the barrier materials 17 enters the right barrier material collecting space 20, which - as well as that left barrier material collection space 20 - includes a floating ball 32 as a shut-off device, the function of which will be described below.
  • the barrier material collection spaces are located within a housing 12 of the sewage lifting unit 10, and the housing 12 has a ventilation opening 14 for ventilation.
  • the partition flaps 22 In the bulky material collecting space 20 there are two partition flaps 22, each with an associated upper flap opening 38 and a lower flap opening 40.
  • the partition flaps 22 abut upper spacers 42 and lower spacers 44, which extend in the form of ribs in the region of the flap openings 38 and 40 (cf. FIG .2).
  • the two flap openings 38 and 40 are largely closed during the filling process, so that the barrier substances 17 are retained in the barrier substance collecting space 20 by the partition flaps 22.
  • the pre-cleaned, non-toxic waste water flows through the remaining part of the flap openings 38 and 40 via a connecting line 24 and a flap arrangement 36 into the collecting container 30.
  • the flap arrangement 36 ensures that the pre-cleaned waste water does not have to take the route via the pump 26 during the filling process of the collecting container 30, but instead can flow directly into the collecting container 30. On the other hand, the flap arrangement 36 clears the way to the pump 26 when the collecting container 30 is emptied, so that the delivery flow can then flow through the pump 26. This mode of operation of the flap arrangement is described in more detail in the initially mentioned patent DE 36 07 353 C2.
  • the level-controlled pump 26 switches on and the pump shown in the left part of the drawing and indicated by arrows C, D and E illustrated emptying process.
  • the pre-cleaned wastewater of the collecting container reaches the pump 26 via a pipe 28 and is pumped through the barrier material collecting space into the pressure pipeline 34 via the flap arrangement 36 and the connecting line 24.
  • the connection from the barrier material collecting space 20 to the inlet line 16 is interrupted by the floating ball 32 acting as a shut-off device.
  • the aim is that the barrier substances 17 retained in the barrier substance collecting space 20 are also flushed into the pressure pipeline 34 will.
  • this does not always succeed and the problems described at the outset occur.
  • Fig. 2 shows a cross-sectional view as an embodiment of the invention, a bulky material collection space 20, which ensures in any case that the retained bulky materials are completely flushed into the pressure pipe when emptying the collecting container.
  • the barrier material collection space 20 has a housing 54 with an upper inlet opening 56 for the wastewater contaminated with barrier substances.
  • An outlet opening 58 serves as a connection to the pressure pipeline 34, and a connection to the connection line 24 for connection to the pump 26 or the collecting container 30 is established via a connection opening 60.
  • the upper flap opening 38 is located above the connecting wall 70, and the lower flap opening 40 is arranged below the connecting wall 70.
  • the assigned separating flaps 22 are not shown here.
  • the upper spacers 42 and the lower spacers 44 are shown, as are the upper flap bracket 62 and the lower flap bracket 64 for the partition flaps 22.
  • a flow baffle 46 extends partially into this chamber 50 and is arranged at an angle 52 of 30 ° with respect to the vertical connecting wall 70.
  • the flow of waste water 15 indicated by the arrow F and entering the common chamber 50 is divided in such a way that about 30% of the flow and about 70% of the flow through the lower flap opening 38 and 40 through the lower flap opening get into the bulky material collecting space 20.
  • pressure differences in the barrier material collecting space 20 are avoided, and there is a largely clear flow pattern of the delivery flow in the barrier material collecting space 20, so that turbulence does not occur and the barrier substances can be flushed completely into the pressure line 34 via the outlet opening 58.
  • the distribution of the delivery flow to the two flap openings 38 and 40 can be influenced by the choice of the angle 52 of the flow guide plate 46 and by the dimensions of the flow guide plate 46.
  • the size of the flap openings 38 and 40 and the dimensioning of the common chamber 52 can also have an influence on the distribution of the flow. In this case, such a division should be aimed at in such a way that a defined proportion of wastewater also flows through the upper flap opening 38 into the barrier material collecting space 20.
  • the delivery flow is thus divided in a predetermined and defined manner between the upper flap opening 38 and the lower flap opening 40.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
EP96102623A 1995-05-26 1996-02-22 Installation élévatoire d'eaux usées Expired - Lifetime EP0744504B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19519305 1995-05-26
DE19519305A DE19519305C2 (de) 1995-05-26 1995-05-26 Abwasserhebeanlage

Publications (2)

Publication Number Publication Date
EP0744504A1 true EP0744504A1 (fr) 1996-11-27
EP0744504B1 EP0744504B1 (fr) 1998-09-23

Family

ID=7762898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102623A Expired - Lifetime EP0744504B1 (fr) 1995-05-26 1996-02-22 Installation élévatoire d'eaux usées

Country Status (3)

Country Link
EP (1) EP0744504B1 (fr)
AT (1) ATE171498T1 (fr)
DE (2) DE19519305C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650625C1 (de) * 1996-12-06 1997-11-13 Strate Maschf Abwasserhebeanlage
DE202011004561U1 (de) 2011-03-29 2011-06-09 STRATE Technologie für Abwasser GmbH, 31157 Abwasserhebeanlage
EP2581508B1 (fr) 2011-10-12 2014-03-19 STRATE Technologie für Abwasser GmbH Installation de relèvement des eaux usées
DE102014109658A1 (de) 2014-07-10 2016-01-14 STRATE Technologie für Abwasser GmbH Siebvorrichtung für eine Abwasserhebeanlage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609166B1 (de) * 1966-07-19 1970-07-09 Wilfried Strate Abwasserhebewerk
DE3607353A1 (de) * 1986-03-06 1987-09-10 Strate Maschf Abwasserhebewerk

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115106C3 (de) * 1971-03-29 1975-04-30 Wilhelm 3011 Rethen Strate Abwasserhebewerk
DE2822877C2 (de) * 1978-05-26 1986-07-31 Cremer & Kreuseler, 4044 Kaarst Hebevorrichtung für mit Dickstoffen versetzte Abwässer o.dgl.
CH628698A5 (en) * 1979-03-15 1982-03-15 Rodolfo Filippi Device for regulating the flow rate of waste water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609166B1 (de) * 1966-07-19 1970-07-09 Wilfried Strate Abwasserhebewerk
DE3607353A1 (de) * 1986-03-06 1987-09-10 Strate Maschf Abwasserhebewerk

Also Published As

Publication number Publication date
DE59600591D1 (de) 1998-10-29
EP0744504B1 (fr) 1998-09-23
DE19519305C2 (de) 2000-12-28
ATE171498T1 (de) 1998-10-15
DE19519305A1 (de) 1996-11-28

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