EP1270832A1 - Système d'évacuation sous vide d'eaux usées - Google Patents
Système d'évacuation sous vide d'eaux usées Download PDFInfo
- Publication number
- EP1270832A1 EP1270832A1 EP02014563A EP02014563A EP1270832A1 EP 1270832 A1 EP1270832 A1 EP 1270832A1 EP 02014563 A EP02014563 A EP 02014563A EP 02014563 A EP02014563 A EP 02014563A EP 1270832 A1 EP1270832 A1 EP 1270832A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum
- sewage
- sewer system
- vacuum sewer
- receptacle
- 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- Withdrawn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
- 239000010865 sewage Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
Definitions
- the present invention relates to a vacuum sewer system according to the preamble of claim 1.
- the object of the present invention is to avoid the above mentioned disadvantages and to provide a vacuum sewer system, in which vacuum generation is achieved by a reliable and simple means. This objective is attained by a vacuum sewer system according to claim 1.
- the basic idea of the invention is to provide an integrated vacuum generation arrangement, which has a basically independent and self-sufficient cooling system. This is achieved by using a liquid ring pump as the vacuum generation means, which pump is provided with an integrated water reservoir. Further, the exhaust air conduit of the pump is provided with a water trap means, which is in fluid communication with the integrated water reservoir.
- An advantage of this arrangement is that outside cooling arrangements, often provided with heat exchangers and other components, are avoided. Furthermore, it is not necessary to have an additional outside supply of water. Outside water, depending on the source, may be contaminated or otherwise unsuitable to be used directly, whereby water treatment units and specific valves would be necessary as in previously known solutions.
- the invention provides a further advantage, even if high quality water would be available, for instance from a water mains in a house, and that is a saving in overall water consumption.
- the water trap means may advantageously be in the form of a condensate collecting container provided with a ventilation means, whereby the saturated air arising at the exhaustion process may be effectively retrieved.
- the condensate collection container is advantageously provided with a substantially elongated configuration, whereby it is arranged in an inclined position.
- the inclined position ensures that the condensate can be retrieved and does not escape form the condensate collection container.
- the angle of inclination is in the range of about 30° to 60°.
- the collecting of condensate can further be enhanced by providing the condensate collecting container with internal drop separation means, e.g. deflector means or guide plates.
- internal drop separation means e.g. deflector means or guide plates.
- the vacuum sewer system is generally indicated by reference numeral 1.
- the system comprises a source of sewage, in this embodiment shown as a toilet unit 2 and a shower arrangement 3, which are connected to a sewage receptacle 6 through a first sewer pipe 4 provided with a first valve means 5, advantageously a check valve.
- the sewage receptacle 6 is connected to a sewage discharge space, indicated by an arrow in the drawing, through a second sewer pipe 7 provided with a second valve means 8, advantageously a check valve.
- the sewage receptacle 6 is provided with a lower level sensor 21, an upper level sensor 22 and a high level sensor 23 for monitoring the level of the sewage collected in the sewage receptacle 6.
- the level sensors 21,22 and 23 are connected to a control center 20.
- the system is provided with a vacuum generation means in the form of a liquid ring pump 30 with a drive motor M, which also is connected to the control center 20.
- the liquid ring pump 30 has an integrated water reservoir.
- the exhaust air conduit 31 of the liquid ring pump 30 is provided with a water trap, in this embodiment a condensate collecting container 32 provided with a first ventilation means 33.
- the condensate collecting container 32 retrieves the saturated air arising from the exhaustion process of the liquid ring pump 30 during the generation of vacuum.
- the condensate collecting container 32 has a substantially elongated configuration and it is arranged in an inclined position, whereby it has shown to be advantageous that the angle ⁇ of inclination is in the range of about 30° to 60°, or around 45° as schematically shown.
- the retrieval of condensate would not be sufficiently successive, if the condensate collecting container would be in a vertical position.
- the condensate collecting container 32 may further be provided with internal deflector means 34 and guide plates 35, i.e. drop separation means, for enhancing the collection of condensate.
- the suction side of the liquid ring pump 30 is in fluid communication with the sewage receptacle 6 through a vacuum conduit 36 provided with a second ventilation means 37 and a pressure switch 38.
- the second ventilation means 37 and the pressure switch 38 are connected to the control center 20.
- Vacuum is generated by the liquid ring pump 30 through the vacuum conduit 36 in the sewage receptacle 6 and the first sewer pipe 4.
- the vacuum level is controlled by the pressure switch 38, whereby a favourable vacuum level would be about -0.3 to -0.7 bar, preferably about -0.4 to -0.5 bar.
- the hysteresis of the pressure switch maintains the vacuum at a desired level. Due to the pressure difference between the ambient pressure in the toilet unit and the shower arrangement and the vacuum level in the first sewer pipe and the sewage receptacle, the sewage is pushed into the sewage receptacle in a manner known per se.
- the second ventilation means 37 is opened, whereby the first valve means 5 is closed, in order to let air into the sewage receptacle 6, which forces the sewage out of the sewage receptacle 6 and through the second sewer pipe 7 and the opened second valve means 8 to a sewage discharge space, which may be a main sewer, a sewage treatment plant, etc., depending on in which connection the invention is employed.
- a sewage discharge space which may be a main sewer, a sewage treatment plant, etc., depending on in which connection the invention is employed.
- the first valve means 5 is closed, the upstream portion of the first sewer pipe 4 remains under vacuum.
- a high level sensor means 23 in the sewage receptacle 6 can advantageously be used for activating a closing down of the system.
- the level sensors 21,22 and 23 as well as the liquid ring pump drive motor M, second ventilation means 37 and the pressure switch 38 are advantageouslly connected to the control center 20, which can be programmed for an optimal running of the vacuum sewer system in question.
- the liquid ring pump 30 is provided with an integrated cooling water reservoir.
- the suction side of the pump is connected to the vacuum conduit 36 in order to draw air from the sewage receptacle 6 and the first sewer pipe 4.
- saturated air arising from the exhaust side of the pump is discharged through the exhaust air conduit 31 into the elongated condensate collecting container 32.
- the saturated air collects as water droplets in the container and on the internal deflector means 34 and guide plates 35, and can thus effectively be retrieved back into the integrated water reservoir of the liquid ring pump 30 during the rest periods of the pump.
- the separated air can leave through the first ventilation means 33 of the condensate collecting container 32.
- the pump has an integrated and basically self-sufficient cooling arrangement, by which also the cooling water quality is under constant control.
- the vacuum sewer system according to the invention described above would be typical for a house with a small number of toilets units and washing arrangements. However, a corresponding system can also advantageously be employed in connection with other vacuum sewer systems, such as vacuum sewer systems on vehicles, in supermarkets, etc.
- the sewage handled by a vacuum sewer system may be grey water, such as water from wash basins, showers, condensate from air-conditioning and refrigeration systems, etc.,or black water, such as sewage from toilet units, meat or fish treatment facilities, or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20011404A FI110537B (fi) | 2001-06-29 | 2001-06-29 | Alipaineviemärijärjestelmä |
| FI20011404 | 2001-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1270832A1 true EP1270832A1 (fr) | 2003-01-02 |
Family
ID=8561537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02014563A Withdrawn EP1270832A1 (fr) | 2001-06-29 | 2002-07-01 | Système d'évacuation sous vide d'eaux usées |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1270832A1 (fr) |
| FI (1) | FI110537B (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007004831A1 (de) * | 2007-01-31 | 2008-08-14 | Airbus Deutschland Gmbh | System zum Spülen einer Vakuumtoilette in einem Luftfahrzeug |
| WO2012112838A1 (fr) | 2011-02-17 | 2012-08-23 | The White Oak Partnership, Lp | Appareil et procédé d'accroissement de la capacité hydraulique d'un égout existant |
| RU2730672C1 (ru) * | 2019-11-06 | 2020-08-24 | Федеральное государственное казённое военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулева" Министерства обороны Российской Федерации | Система самотечно-вакуумной канализации |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692101A (en) * | 1984-07-12 | 1987-09-08 | Itt Industries, Inc. | Liquid ring vacuum pump arrangement having minimized operating liquid consumption |
| US4963094A (en) * | 1987-04-13 | 1990-10-16 | Ramvac Corp. | Vacuum controller and filter assembly for dental vacuum system |
| EP0486726A1 (fr) * | 1990-11-23 | 1992-05-27 | Siemens Aktiengesellschaft | Pompe à anneau liquide |
| US5133853A (en) * | 1988-10-05 | 1992-07-28 | Nesite Oy | Sewage system |
| EP0644299A2 (fr) * | 1993-09-21 | 1995-03-22 | Evac Ab | Système et procédé d'égout sous vide |
| EP0823553A2 (fr) * | 1996-08-06 | 1998-02-11 | Siemens Aktiengesellschaft | Ensemble de compresseur |
-
2001
- 2001-06-29 FI FI20011404A patent/FI110537B/fi active
-
2002
- 2002-07-01 EP EP02014563A patent/EP1270832A1/fr not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692101A (en) * | 1984-07-12 | 1987-09-08 | Itt Industries, Inc. | Liquid ring vacuum pump arrangement having minimized operating liquid consumption |
| US4963094A (en) * | 1987-04-13 | 1990-10-16 | Ramvac Corp. | Vacuum controller and filter assembly for dental vacuum system |
| US5133853A (en) * | 1988-10-05 | 1992-07-28 | Nesite Oy | Sewage system |
| EP0486726A1 (fr) * | 1990-11-23 | 1992-05-27 | Siemens Aktiengesellschaft | Pompe à anneau liquide |
| EP0644299A2 (fr) * | 1993-09-21 | 1995-03-22 | Evac Ab | Système et procédé d'égout sous vide |
| EP0823553A2 (fr) * | 1996-08-06 | 1998-02-11 | Siemens Aktiengesellschaft | Ensemble de compresseur |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007004831A1 (de) * | 2007-01-31 | 2008-08-14 | Airbus Deutschland Gmbh | System zum Spülen einer Vakuumtoilette in einem Luftfahrzeug |
| DE102007004831B4 (de) * | 2007-01-31 | 2011-06-09 | Airbus Operations Gmbh | System zum Spülen einer Vakuumtoilette in einem Luftfahrzeug |
| US8185977B2 (en) | 2007-01-31 | 2012-05-29 | Airbus Operations Gmbh | System for flushing of a vacuum toilet in an aircraft |
| WO2012112838A1 (fr) | 2011-02-17 | 2012-08-23 | The White Oak Partnership, Lp | Appareil et procédé d'accroissement de la capacité hydraulique d'un égout existant |
| US9157226B2 (en) | 2011-02-17 | 2015-10-13 | The White Oak Partnership Lp | Apparatus and method for increasing hydraulic capacity of a sewer |
| RU2730672C1 (ru) * | 2019-11-06 | 2020-08-24 | Федеральное государственное казённое военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулева" Министерства обороны Российской Федерации | Система самотечно-вакуумной канализации |
Also Published As
| Publication number | Publication date |
|---|---|
| FI20011404A (fi) | 2002-12-30 |
| FI110537B (fi) | 2003-02-14 |
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| 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 |
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| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
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| 17P | Request for examination filed |
Effective date: 20030227 |
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| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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| 17Q | First examination report despatched |
Effective date: 20031120 |
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| 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: 20050128 |