EP0594548A1 - Vorrichtung zur automatischen Zirkulation in Abwasserpumpstation - Google Patents
Vorrichtung zur automatischen Zirkulation in Abwasserpumpstation Download PDFInfo
- Publication number
- EP0594548A1 EP0594548A1 EP93850173A EP93850173A EP0594548A1 EP 0594548 A1 EP0594548 A1 EP 0594548A1 EP 93850173 A EP93850173 A EP 93850173A EP 93850173 A EP93850173 A EP 93850173A EP 0594548 A1 EP0594548 A1 EP 0594548A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- pump
- chamber
- circulation
- pressure
- 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
Images
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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
Definitions
- the invention concerns a device for providing circulation in pump stations which are parts of a municipal sewage system.
- the problems have been solved by arranging a valve in the pump outlet, which is opened temporarily thus obtaining a circulation and flushing in the pump station.
- the sludge banks are dissolved and the fluid is homogenized.
- the purpose of this invention is to obtain a device which in a simple and reliable way controls the valve and which is less sensitive to clogging. This is obtained by help of the method and the device stated in the claims.
- Fig 1 shows a pump station with a pump unit and attached valve.
- Figs 2 to 4 show the principle design of the valve in different operating positions.
- FIG. 1 stands for a pump station with a submersible pump unit 2 connected to a pressure pipe 3.
- 4 stands for the pump housing having an inlet 5
- 6 stands for a mixing valve mounted on the pump housing 4.
- 7 stands for a cylindric part of the valve 6 and 8 its outlet.
- 9 stands for a pressure connection from the pump housing 4, 10 a membrane housing with a membrane 11 which parts two chambers 12 and 13.
- 14 stands for a partition wall having an opening 15,16 an additional chamber, 17 a flexible wall, 18 a valve flap having a leading edge and 20 finally a valve seat.
- the device operates in the following manner: Normally the valve 6 is closed and the pumped medium is transported from the pump housing 4 and into the pressure pipe 3. The flow direction is shown by the Arrow A.
- valve is open, which means that a certain amount of the pumped medium flows through the valve, arrow B, and obtains a strong agitation in the pump station wrenching possible sludge banks. After a certain time, the valve is closed and the pumping takes place in the normal way.
- the valve 6 comprises a cylindric part 7 and an outlet 8.
- a pressure pipe 9 from the pump housing 4 is connected to the cylindric part 7 via a membrane housing 10 having a first chamber 12.
- the pressure therein acts upon a membrane 11 which in its turn influences on the pressure in another chamber 13 containing a dampening medium such as oil.
- the chamber 13 is further limited by a wall 14 provided with a narrow opening 15 creating a connection with a second oil chamber 16.
- the latter has a flexible wall 17 arranged to be able to act upon a valve flap 18 for a temporary closing of the valve 6.
- Fig 2 shows the valve in an open position which means that circulation is taking place in the pump station.
- the valve flap 18 then takes a position entirely beside the flow. This is the situation at pump start.
- the pressure in the pump outlet thus acts upon the flap 18 via the chamber 12, the membrane 11 the chamber 13 the opening 15 and the chamber 16.
- the time before which the flap is being closed may be decided by dimensioning the opening 15. The smaller opening, the longer time before enough oil has flown into the chamber 16 to obtain a sufficient force onto the flap 18.
- the suitable opening time may vary depending on the type of pump station and is preferably possible to adjust from outside.
- closing element is described as a flap valve.
- other movable elements are possible within the scope of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9202759A SE9202759L (sv) | 1992-09-24 | 1992-09-24 | Anordning för att åstadkomma cirkulation i pumpstationer |
SE9202759 | 1992-09-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0594548A1 true EP0594548A1 (de) | 1994-04-27 |
EP0594548B1 EP0594548B1 (de) | 1997-08-13 |
Family
ID=20387260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93850173A Expired - Lifetime EP0594548B1 (de) | 1992-09-24 | 1993-09-08 | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0594548B1 (de) |
DE (1) | DE69313069T2 (de) |
SE (1) | SE9202759L (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4415233C1 (de) * | 1994-04-30 | 1995-12-14 | Abs Pumps Ltd | Spülventil |
EP1154085A1 (de) * | 2000-05-12 | 2001-11-14 | Zenit S.p.A. | Taktweise bearbeitendes Spülventil |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107288921A (zh) * | 2017-08-08 | 2017-10-24 | 苏州克莱尔环保科技有限公司 | 搅碎式提升泵站 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058648A1 (de) * | 1981-02-10 | 1982-08-25 | Flygt AB | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
EP0384903A1 (de) * | 1989-02-21 | 1990-08-29 | Itt Flygt Ab | Vorrichtung zur automatischen Zirkulation in Abwasser-Pumpstationen |
EP0472509A1 (de) * | 1990-08-21 | 1992-02-26 | Itt Flygt Ab | Verfahren und Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
-
1992
- 1992-09-24 SE SE9202759A patent/SE9202759L/ not_active IP Right Cessation
-
1993
- 1993-09-08 DE DE1993613069 patent/DE69313069T2/de not_active Expired - Fee Related
- 1993-09-08 EP EP93850173A patent/EP0594548B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058648A1 (de) * | 1981-02-10 | 1982-08-25 | Flygt AB | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
EP0384903A1 (de) * | 1989-02-21 | 1990-08-29 | Itt Flygt Ab | Vorrichtung zur automatischen Zirkulation in Abwasser-Pumpstationen |
EP0472509A1 (de) * | 1990-08-21 | 1992-02-26 | Itt Flygt Ab | Verfahren und Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
Non-Patent Citations (3)
Title |
---|
EP-A- 0 058 648 * |
EP-A- 0 384 903 * |
EP-A- 0 472 509 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4415233C1 (de) * | 1994-04-30 | 1995-12-14 | Abs Pumps Ltd | Spülventil |
EP1154085A1 (de) * | 2000-05-12 | 2001-11-14 | Zenit S.p.A. | Taktweise bearbeitendes Spülventil |
Also Published As
Publication number | Publication date |
---|---|
SE9202759D0 (sv) | 1992-09-24 |
EP0594548B1 (de) | 1997-08-13 |
DE69313069T2 (de) | 1998-02-19 |
DE69313069D1 (de) | 1997-09-18 |
SE469844B (sv) | 1993-09-27 |
SE9202759L (sv) | 1993-09-27 |
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