EP3791028A1 - Wastewater-lifting system - Google Patents
Wastewater-lifting systemInfo
- Publication number
- EP3791028A1 EP3791028A1 EP19723743.1A EP19723743A EP3791028A1 EP 3791028 A1 EP3791028 A1 EP 3791028A1 EP 19723743 A EP19723743 A EP 19723743A EP 3791028 A1 EP3791028 A1 EP 3791028A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wastewater
- collecting container
- separating screen
- bulk material
- 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.)
- Granted
Links
- 239000002351 wastewater Substances 0.000 claims abstract description 50
- 239000013590 bulk material Substances 0.000 claims description 42
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract 6
- 239000007788 liquid Substances 0.000 description 15
- 239000007787 solid Substances 0.000 description 12
- 238000012216 screening Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 239000010782 bulky waste Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000004067 bulking agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
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, comprising at least one bulk collecting tank with at least one separating sieve arranged therein for wastewater contaminated with blocking substances, and at least one downstream of the bulky waste collecting tank, which has at least one connecting line with the Bulk-collecting container is connected, wherein the dividing screen is formed by a closable opening in the bulk material collecting container either removable from this and reusable in this.
- Wastewater lifting plants are usually used to raise the end of a Abwasserstaurau with collected wastewater to a certain level.
- the bulk material collecting container is provided.
- the solids are separated from the pumped liquid or the wastewater before the freed of the solids pumped medium enters the pump.
- For the separation of the solids from the pumped liquid arranged in the interior of the bulk material collection container provides separation screen.
- the blocking substances remain in this process in the bulk material collecting container, so that only in this way pre-cleaned wastewater is transferred to a liquid collecting tank downstream of the bulk material collecting container.
- the pre-treated wastewater flows through the pump downstream of the bulk material collecting container and subsequently enters the liquid collecting container.
- the basic mode of operation of such a wastewater lifting plant is described, for example, in EP 1 108 822 B1.
- EP 2 581 508 B1 relates to a comparable sewage lifting plant which is equipped with a filter device outside the housing for the liquid collecting container or outside this liquid collecting container.
- the fil tervoriques has a filter box, which has a closable opening and is placed in front of the pump.
- the filter device has a sieve unit which is exchangeable and is formed by a plurality of strips formed in the manner of a comb with gaps and teeth.
- the screen unit can basically be removed and, for example, cleaned or replaced.
- the metal strips used at this point are relatively fragile. Although they allow a change in the filter properties of the screen unit. However, damage to the strips in question both during operation and during installation and removal are possible and can not be excluded.
- the local bulk material collecting container is equipped with a shut-off / screening device as a unit consisting of a shut-off flap and a sieve, which can also work or work as a separating sieve.
- the shut-off / screening device together with a closure flange of the bulk material collecting container, forms a structural unit and can be removed from the bulk material collecting container in question and replaced in it.
- Such an approach has proven itself in principle.
- the installation and removal of said assembly is not without problems, because to the end flange must be coupled from the side with the bulk material collection container and screwed.
- the prior art knows a screening device for a wastewater lifting plant, as described in EP 2 966 231 A1.
- the screening device and the bulk material collecting container are altogether outside a collecting container or liquid collecting container and thus designed freely accessible.
- the sieve device comprises at least one module which has an outer frame. Within the outer frame, a plurality of spaced-apart, alternately long and short pins extend from its circumference to the center of the outer frame. The pins are inclined in the direction of the flow generated when emptying the sump deviating from the vertical direction of the flow.
- the screening device forms an independent component which is detachably connected to the wastewater lifting plant.
- the installation and removal of the screening device takes place here again from the side, that is, for example, from the right into an associated housing.
- This is at a high weight of the screening device comparable to the previously described prior art according to DE 20 2008 011 273 U1 disadvantageous.
- the invention is based on the technical problem of such a Abwasserhebean position develop so that the dividing screen is easy and little effort accessible.
- the invention proposes in a gatmentungsdorfen sewage lifting system that the bulk material collecting container is formed with an inside guide and in particular a linear guide for herein einsteck bare and retractable separating screen, both the plug and the drawing process the separation screen is mostly vertical.
- the separating screen is arranged on an insertion frame interacting with the guide. Consequently, the dividing screen can be easily inserted and pulled out again via the slide-in frame into the inside guide provided in the bulk material collecting container and, in particular, the linear guide, and this can be withdrawn predominantly vertically. In this way, initially a simple installation and removal of the separation screen is provided.
- the bulk substance collecting container is basically arranged inside the liquid collecting container, as is predominantly disclosed in EP 2 581 508 B1 is shown and described.
- the bulk material collecting container (as well as the pump) is arranged outside the liquid collecting container, comparable as described and emphasized in EP 2 966 231 A1.
- the invention makes use of a linear guide running in the bulk material collecting container in a direction perpendicular or predominantly in the direction of gravity, whereas an exchange is possible in the case of the previously mentioned and known teaching, but in such a way that the sieving device there again depends on the side is inserted and pulled out.
- EP 2 581 508 B1 although a predominantly vertical movement of the separating screen is observed, but unguided, so that in this process damage to the strips of the filter used are possible.
- the dividing screen-carrying insertion frame and the guide in front view are U-shaped.
- the design is such that the respective U-shape with the associated U-legs predominantly perpendicular or runs in the direction of gravity.
- the separating screen, the guide and the insertion frame are generally arranged in a box housing part of an otherwise tubular housing of the bulk material collecting container.
- the box body part is advantageously equipped with the top opening for the separation screen. It has proven particularly useful if the opening is rectangular. Because this can be worked on the whole flange with an associated rectangular closure. It is even possible that this sealing flange will be equipped with a quick-release fastener.
- the generally predominantly tubular housing of the bulk material collecting container is designed, as a rule, at least in the manner of a box in the region of the separating sieve and consequently of the guide and the insertion frame. Because in this area, the box housing part of the otherwise tubular housing of the bulk material collection container is realized.
- the box-like design or the box housing part has a base adapted to the pipe shape and two side walls running parallel to one another, so that this results in a U-shaped cross section of the box housing part with the top-side closure flange. Consequently, the opening of the box body part is formed rectangular.
- the closure flange has an associated and the opening occlusive rectangular shape.
- the closure flange can also be designed round or oval.
- the drawer frame is connected to the closure flange.
- the separating screen is aligned directly with an installation of the separating screen and an associated plugging operation of the insertion frame in the inside guide, but also the connected to the insertion frame closure flange relative to the opening. Consequently, the installation and removal of the separating sieve are particularly simple and inexpensive, which is why any maintenance and cleaning work can be carried out particularly quickly and easily.
- the slide-in frame also generally carries a butterfly valve.
- the butterfly valve is generally connected to the slide-in frame via a joint. With the help of the butterfly valve, an opening in the drawer frame can at least be closed so far that a wastewater flow only passes through the separating sieve.
- the dividing screen is advantageously and essentially composed of a plurality of webs arranged at the edge edge of said opening in the insertion frame and spaced apart from one another. The design may be selected to be comparable to that in the previously mentioned reference DE 20 2008 011 273 U1.
- a wastewater lifting plant is made available, which enables easy maintenance and cleaning of the separating sieve, without the risk of damaging the separating sieve during installation and removal.
- the installation and removal is particularly simple and accurate, because this only a guided plug as well as a drawing process is required in the invention. any Canting or damage is thereby excluded.
- the installation and removal is much easier. Here are the main benefits.
- Fig. 1 is a wastewater lifting plant according to the invention in a perspective
- FIG. 1 Overview and Fig. 2 is a schematic longitudinal section through the bulk material collecting container as part of the sewage lifting unit of FIG .. 1
- a wastewater lifting plant is shown. This first of all has an inlet 1 for waste water, which via a feed distributor 2 via a supply line 3, the wastewater in the embodiment in each case into two bulk material collecting container 4 transferred.
- the wastewater lifting plant is designed symmetrically and has two bulk material collecting container 4 and additionally two discharges or connecting lines 5, via which the wastewater pre-cleaned with the aid of the bulk material collecting container 4 into an associated pump 6 reached.
- the bulk material collecting container 4 or the two bulk material collecting containers 4 respectively ensure that the wastewater flowing in total via the inlet 1 and the inlet distributor 2 and contaminated with solids is freed from the blocking substances or solids present in the associated bulk material collecting container 4 remain.
- the pre-cleaned wastewater in this way then passes through the discharge line 5 into the pump 6 or via a bypass 7 directly into a liquid collecting tank 8.
- the pre-purified waste water flowing through the respective pump 6 also passes through a discharge line 9 into the liquid collecting tank 8
- the inflow of the wastewater corresponds.
- the prepurified wastewater from the liquid collecting container 8 is now sucked in via the discharge line 9 in each case from the pump 6 and forced through the discharge line or connecting lines 5 into the bulking agent collecting container 4.
- the pre-treated wastewater takes along the solids retained in the bulky waste collecting tank 4 and transfers the wastewater via a pressure line 11 to a further plant or, generally, a further treatment.
- the blocking substances are released from the bulk material collecting container 4 and flushed into the pressure line 11 virtually without resistance in the subsequent pumping operation.
- the design and function, in particular the bulk material collection container 4 is important.
- connection line 5 a longitudinal section of the bulk material collecting container 4 is shown. It can be seen first of all corresponding connection flanges on the one hand to the supply line 3 and on the other hand to the pressure line 11. In addition, one recognizes the batch or the bypass line 7. This also applies to the connection line. 5
- the decisive factor is the fact that the bulk material collecting container 4 is initially equipped with a separating sieve 12 arranged in its interior. Through the separating screen 12, the polluted wastewater wastewater is passed. In fact, the wastewater, starting from the feed 1 via the feed distributor 2 and the feed line 3, finally flows into the bulk material collecting container 4. From there, the wastewater flows through the separating sieve 12.
- the separation screen 12 ensures in this process that the solids are retained in the bulk material collecting container 4.
- a shut-off flap 13 is assigned to the separating sieve 12 according to the exemplary embodiment.
- the shut-off valve 13 ensures that an opening 14 in a Einschubrah men 15 is closed and the polluted with the wastewater wastewater inlet only through the separating screen 12 into the associated connection line or drain 5 or the bypass or the bypass line 7 as pre-treated wastewater enters and from there into the liquid collecting container 8 passes.
- the wastewater is converted by means of a deflection or a deflecting plate 16. directs. Because the bulk material collecting container 4 extends predominantly horizontally, whereas the prepurified wastewater is deflected vertically downwards via the discharge line 5 according to the exemplary embodiment in order to be able to enter the pump 6 or the bypass 7 from there.
- this is only an example and by no means limiting.
- the butterfly valve 13 is connected to the slide-in frame 15 via a hinge 17. 2 that the insertion frame 15 in turn is connected to a closure flange 18 which closes an opening in a box housing part 19b.
- the housing 19a, 19b, 19c of the bulk material collecting container 4 is composed of a tubular housing part 19a and essentially the box housing part 19b.
- the box housing part 19b In the box housing part 19b, the dividing screen 12 and the Einschubrah- men 15 and an inner guide 20 to be described in more detail below for the insertable here and again pull-out separating screen 12 are realized.
- the housing 19a, 19b and 19c also comprises a deflection housing part 19c, in which the deflection or the deflection plate 16 is arranged.
- the box housing part 19b not only has the upper-side opening closed by means of the closure flange 18, but is overall U-shaped in cross-section.
- the box housing part 19b has an arcuate base and two U-legs extending predominantly parallel to one another, which define the top-side opening with the rectangular closure flange 18 provided there.
- the dividing screen 12 provided in the bulk material collecting container 4 can be removed from the bulk material collecting container 4 and inserted into it again, as desired, by means of the optionally closeable and openable opening with the aid of the closure flange 18.
- the bulk material collecting container 4 is equipped with the inside guide 20 already described above.
- the inside guide 20 is U-shaped in a front view, so that the slide-in frame 15 between the two U-legs is kept perfectly in the inserted state.
- the insertion frame 15 and the guide 20 in front view are each U-shaped.
- the respective U-shape follows the U-shaped form of the housing housing part 19b of the housing 19a, 19b, 19c of the bulky waste collection container 4.
- the corresponding plug-in as well as a drawing operation of the separating screen 12 takes place predominantly vertically or in the direction of gravity and corresponding to the double arrow shown in FIG. That is, the indicated by the double arrow plug-in as well as the drawing process of the separating screen 12 in the inside guide 20 is perpendicular to the horizontal extent of the bulk material collecting container 4 vor ⁇ accepted.
- the separating sieve 12 like the optional shut-off flap 13, is arranged on the insertion frame 15, which interacts with the guide 20 on the inside of the bulky substance collecting container 4.
- the separating screen 12 and finally the butterfly valve 13 are inserted into the guide 20 and pulled out of the guide 20 again.
- the separating screen 12, the guide 20 and the insertion frame 15 as well as the butterfly valve 13 in the box housing part 19 b of the otherwise tubular housing 19 a, 19 b, 19 c of the bulk material collecting container 4 are arranged.
- the closure flange can also be designed round or oval.
- the separating screen 12 is composed essentially of a plurality of webs arranged at the edge side of the opening 14 in the insertion frame 15 and spaced apart from one another. 2, the shut-off flap 13 is closed, as shown, and abuts the web-side webs on the webs in question and the separating web 12 forming webs.
- the inlet of the solids laden wastewater via the supply line 3 is closed.
- the wastewater flows through the separating screen 12 into the discharge line 5 and the solids or blocking substances are retained by the separating screen 12 in this process.
- the pre-cleaned wastewater in this way subsequently passes into the liquid collection container 8, as has already been described in the introduction
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)
- Filtration Of Liquid (AREA)
- Sewage (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HRP20231162TT HRP20231162T1 (en) | 2018-05-09 | 2019-05-07 | Sewage lifting installation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018207243.4A DE102018207243A1 (en) | 2018-05-09 | 2018-05-09 | Sewage lifting unit |
PCT/EP2019/061643 WO2019215124A1 (en) | 2018-05-09 | 2019-05-07 | Wastewater-lifting system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3791028A1 true EP3791028A1 (en) | 2021-03-17 |
EP3791028C0 EP3791028C0 (en) | 2023-08-16 |
EP3791028B1 EP3791028B1 (en) | 2023-08-16 |
Family
ID=66530017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19723743.1A Active EP3791028B1 (en) | 2018-05-09 | 2019-05-07 | Sewage lifting installation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210071406A1 (en) |
EP (1) | EP3791028B1 (en) |
CN (1) | CN112135947B (en) |
CA (1) | CA3098605A1 (en) |
DE (1) | DE102018207243A1 (en) |
HR (1) | HRP20231162T1 (en) |
WO (1) | WO2019215124A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4582605A (en) * | 1984-05-07 | 1986-04-15 | R-P & C Valve Inc. | In-line pipeline strainer |
JPH1161972A (en) * | 1997-08-20 | 1999-03-05 | Kubota Corp | Pumping station having function for separating solid foreign matter |
US6231764B1 (en) * | 1999-02-10 | 2001-05-15 | Perfection Sprinkler Co. | Septic tank pump arrangement including a self-cleaning rotary strainer |
EP1108822B1 (en) * | 1999-12-17 | 2002-10-23 | Michael Becker | Sewage lifting plant |
JP4145861B2 (en) * | 2004-11-05 | 2008-09-03 | 株式会社酉島製作所 | Sewage relay pump equipment |
DE202008011273U1 (en) * | 2008-08-25 | 2008-10-30 | Becker Elektromaschinenbau Gmbh | Sewage lifting unit |
FR2946062B1 (en) * | 2009-05-26 | 2014-06-06 | H M T | MATERIAL SEPARATOR, ESPECIALLY FOR WASTEWATER STACKING STATION, AND STACKING STATION INCLUDING APPLICATION |
DE102010038137B4 (en) * | 2010-10-12 | 2018-03-15 | Herborner Pumpentechnik Gmbh & Co Kg | Circulation device for baths |
EP2489800B1 (en) * | 2011-02-16 | 2016-08-17 | Grundfos Management a/s | Waste water hoisting facility |
EP2573288B1 (en) * | 2011-09-22 | 2013-10-16 | Grundfos Holding A/S | Waste water hoisting facility |
EP2581508B1 (en) * | 2011-10-12 | 2014-03-19 | STRATE Technologie für Abwasser GmbH | Waste water lifting facility |
DE102013213709A1 (en) * | 2013-07-12 | 2015-01-15 | Ksb Aktiengesellschaft | Sewage lifting unit |
DE102013221080A1 (en) * | 2013-10-17 | 2015-04-23 | Ksb Aktiengesellschaft | Sewage lifting unit |
DE102014109658A1 (en) * | 2014-07-10 | 2016-01-14 | STRATE Technologie für Abwasser GmbH | Sieve device for a wastewater lifting plant |
-
2018
- 2018-05-09 DE DE102018207243.4A patent/DE102018207243A1/en active Pending
-
2019
- 2019-05-07 HR HRP20231162TT patent/HRP20231162T1/en unknown
- 2019-05-07 US US17/053,642 patent/US20210071406A1/en active Pending
- 2019-05-07 CA CA3098605A patent/CA3098605A1/en active Pending
- 2019-05-07 EP EP19723743.1A patent/EP3791028B1/en active Active
- 2019-05-07 WO PCT/EP2019/061643 patent/WO2019215124A1/en unknown
- 2019-05-07 CN CN201980030979.8A patent/CN112135947B/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3791028C0 (en) | 2023-08-16 |
CN112135947B (en) | 2023-04-14 |
HRP20231162T1 (en) | 2024-01-05 |
WO2019215124A1 (en) | 2019-11-14 |
EP3791028B1 (en) | 2023-08-16 |
CA3098605A1 (en) | 2019-11-14 |
DE102018207243A1 (en) | 2019-11-14 |
US20210071406A1 (en) | 2021-03-11 |
CN112135947A (en) | 2020-12-25 |
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