EP0639716A1 - Device for sewage pumping stations - Google Patents
Device for sewage pumping stations Download PDFInfo
- Publication number
- EP0639716A1 EP0639716A1 EP94850060A EP94850060A EP0639716A1 EP 0639716 A1 EP0639716 A1 EP 0639716A1 EP 94850060 A EP94850060 A EP 94850060A EP 94850060 A EP94850060 A EP 94850060A EP 0639716 A1 EP0639716 A1 EP 0639716A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pumps
- shunt lead
- valve
- flow
- 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.)
- Withdrawn
Links
Images
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
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- 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
- F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
Definitions
- a Device to diminish the risk for clogging of pumps for sewage water and other liquids containing contaminations A Device to diminish the risk for clogging of pumps for sewage water and other liquids containing contaminations.
- the invention concerns a device to diminish the risk for clogging of the hydraulic parts in pump stations for sewage water and other heavily polluted liquids.
- a pump station for sewage water comprises a tank with inlets and outlets, that latter(s) from one or several pumps.
- the sewage water always contains a lot of pollutions such as sludge and elongated objects such as rags which easily clog pumps and pipes.
- the hydraulic parts of the pumps are designed with large throughlets and the inlets sometimes being provided with cutting means which cut the elongated objects into pieces.
- An example is shown in the Swedish Patent No 820 5774-6.
- Another method which is used to take away elongated objects from the pump inlet is to operate the pump in reverse a short time before each pump start. In this way rags being stuck to the impeller may be flushed away.
- 1 stands for a pump station with inlet 2 and outlet 3 for sewage water.
- 4 and 5 stand for submersible pumps with inlet 6 and 7 respectively and pressure pipes 8 and 9 respectively 10 stands for a shunt lead having a valve arrangement 11.
- 12 and 13 finally stand for non-return valves.
- the device according to the invention operates in the following way.
- the valve 11 may, as previously mentioned, be controlled in various ways, manually or automatically, independant of time, amount of flow etc.
- the invention also includes the use of three or more pump units in the same or adjacent pump stations being provided with shunt leads in the way described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301403A SE501194C2 (sv) | 1993-04-27 | 1993-04-27 | Anordning för att minska risken för igensättning av pumpar för avloppsvatten och andra vätskor innehållande fasta föroreningar |
SE9301403 | 1993-04-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0639716A1 true EP0639716A1 (en) | 1995-02-22 |
Family
ID=20389720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94850060A Withdrawn EP0639716A1 (en) | 1993-04-27 | 1994-04-20 | Device for sewage pumping stations |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0639716A1 (sv) |
NO (1) | NO941513L (sv) |
SE (1) | SE501194C2 (sv) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013159242A1 (es) * | 2012-04-26 | 2013-10-31 | Abbruzzese Permutt Gino Rocco | Sistema y procedimiento de limpieza para motobombas sumergibles cubiertas con camisas de aspiración, dispuestas en forma horizontal o vertical |
CN108026711A (zh) * | 2015-07-30 | 2018-05-11 | 爱河溪工程商业有限公司 | 水下开槽设备和泵送设备 |
CN111706527A (zh) * | 2020-05-08 | 2020-09-25 | 湖南都市职业学院 | 浅层地能地下水与泥浆自动分离系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1415769A (en) * | 1922-02-17 | 1922-05-09 | Beddoes Hubert | Pumping system |
US2238597A (en) * | 1939-08-24 | 1941-04-15 | Chicago Pump Co | Pumping apparatus |
JPS5746086A (en) * | 1980-09-03 | 1982-03-16 | Hitachi Ltd | Operation of sewage pump |
-
1993
- 1993-04-27 SE SE9301403A patent/SE501194C2/sv unknown
-
1994
- 1994-04-20 EP EP94850060A patent/EP0639716A1/en not_active Withdrawn
- 1994-04-26 NO NO941513A patent/NO941513L/no unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1415769A (en) * | 1922-02-17 | 1922-05-09 | Beddoes Hubert | Pumping system |
US2238597A (en) * | 1939-08-24 | 1941-04-15 | Chicago Pump Co | Pumping apparatus |
JPS5746086A (en) * | 1980-09-03 | 1982-03-16 | Hitachi Ltd | Operation of sewage pump |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 6, no. 117 (M - 139)<995> 30 June 1982 (1982-06-30) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013159242A1 (es) * | 2012-04-26 | 2013-10-31 | Abbruzzese Permutt Gino Rocco | Sistema y procedimiento de limpieza para motobombas sumergibles cubiertas con camisas de aspiración, dispuestas en forma horizontal o vertical |
US10344762B2 (en) | 2012-04-26 | 2019-07-09 | Gino Rocco ABBRUZZESE PERMUTT | System and method for cleaning submersible motor pumps covered with suction sleeves and disposed horizontally or vertically |
CN108026711A (zh) * | 2015-07-30 | 2018-05-11 | 爱河溪工程商业有限公司 | 水下开槽设备和泵送设备 |
CN108026711B (zh) * | 2015-07-30 | 2021-05-14 | 皇家Ihc有限公司 | 水下开槽设备和泵送设备 |
CN111706527A (zh) * | 2020-05-08 | 2020-09-25 | 湖南都市职业学院 | 浅层地能地下水与泥浆自动分离系统 |
CN111706527B (zh) * | 2020-05-08 | 2021-08-17 | 湖南都市职业学院 | 浅层地能地下水与泥浆自动分离系统 |
Also Published As
Publication number | Publication date |
---|---|
NO941513L (no) | 1994-10-28 |
SE9301403L (sv) | 1994-10-28 |
SE9301403D0 (sv) | 1993-04-27 |
SE501194C2 (sv) | 1994-12-05 |
NO941513D0 (sv) | 1994-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE DK FR GB IT |
|
17P | Request for examination filed |
Effective date: 19950811 |
|
17Q | First examination report despatched |
Effective date: 19970124 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970604 |