EP1154085A1 - Taktweise bearbeitendes Spülventil - Google Patents
Taktweise bearbeitendes Spülventil Download PDFInfo
- Publication number
- EP1154085A1 EP1154085A1 EP01110148A EP01110148A EP1154085A1 EP 1154085 A1 EP1154085 A1 EP 1154085A1 EP 01110148 A EP01110148 A EP 01110148A EP 01110148 A EP01110148 A EP 01110148A EP 1154085 A1 EP1154085 A1 EP 1154085A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flushing valve
- valve according
- membrane
- spherical
- valve body
- 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
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/007—Devices providing a flushing surge
Definitions
- the present invention relates to a flushing valve.
- sump pits are placed at preset intervals along the extension of the pipes.
- flushing valves are used which are immersed in said sump pits and are associated with a conventional submersed pump adapted to send the collected wastewater to the downstream piping, allow to automatically activate a jet of water which is adapted to keep under agitation the overall mass of water collected in the sump pits, thus greatly limiting deposition phenomena.
- Conventional valves substantially consist of a body inside which there is provided a chamber in which a ball of heavy material, usually a metallic one, is placed by gravity; said ball is adapted to act as a flow control element for a Venturi tube-like forced passage formed in the piping that arrives from the pump and passes through said valve body.
- said ball is first raised by an elastic membrane which is hermetically coupled on the bottom of the chamber that accommodates it and is gradually inflated by a flow of oil contained in a suitably provided reservoir embedded in the valve body; said oil flow is triggered by the suction generated on the membrane by the Venturi tube-like passage and the lifting of said membrane gradually moves the ball towards the mouth of the forced passage: when the position of the ball is such that it interferes with the flow of water arriving from the pump, it is pushed, as mentioned, so as to block the mouth of said passage.
- valves in fact entail fitting on the valve body bellows made of elastomeric material which constitute the oil containment chamber and which, in the long term, also due to their stable placement in an aggressive environment, deteriorate and have to be replaced, wasting time for their recovery from the sump pits, for their indispensable cleaning, for the repair operation and for their subsequent reinstallation.
- the heavy metal balls can be easily deteriorated by the liquids present in the sump pits and can be damaged by the violent impacts to which they are subjected when the water passage is closed; their consequent fall also damages the membranes with which conventional valves are provided.
- the aim of the present invention is to eliminate the above-noted drawbacks of the prior art by providing a flushing valve which has a simple structure, is durable, has a low cost and does not have elements made of materials which can deteriorate due to use and permanence in a particularly aggressive environment.
- a flushing valve characterized in that it is constituted by a container valve body which is internally hollow and provided with a vent valve and is arranged above, and connected at its base to, a pipe for the passage of a stream of liquid that arrives from a pumping means provided with a Venturi tube-like choke located directly downstream of the valve body, which has, in its upper inner portion, a first membrane for pushing a flow control element for closing the choke, said flow control element normally floating in the hollow body, said first membrane being connected to at least one reservoir for containing incompressible liquid which is connected to the internal cavity of the body.
- said flow control element is composed of at least one pair of spherical bodies which are interconnected by means of a wing, a first body acting as a float and a second one acting as ballast and closure for said Venturi tube-like choke.
- 1 designates a flushing valve which is constituted by a container valve body 2 which is internally hollow, forming a chamber 2b, and is provided with a valve 2c for venting the air that can accumulate therein and is arranged on top of, and connected at its base 2a to, a pipe 3 in which a stream of liquid flows; in this specific case, said liquid is water which arrives from a pumping means which is conventional and therefore not shown and is immersed in a sump pit for collecting the so-called storm sewage or wastewater.
- the pipe 3 is provided with a choke or throttling 4 which shapes a Venturi tube and is arranged directly downstream of the valve body 2.
- Said valve body has, in its inner upper portion, a first membrane 5 adapted to push on a flow control element 6 which controls said choke 4 and floating in the hollow body 2; the first membrane 5 is connected to at least one reservoir 7 for containing incompressible liquid, usually oil, which is connected to the internal chamber 2b of the valve body 2.
- incompressible liquid usually oil
- the flow control element 6 is composed of at least two bodies 8 and 9, both of which are preferably spherical, and which are interconnected by means of a wing 10: the first body 8 floats and the second body 9 acts as ballast and closes the Venturi tube-like choke 4; the diameters of the spherical bodies 8 and 9 are different one from the other and the diameter of the first body 8 is larger than the diameter of the second body 9.
- the valve body 2 is connected to the pipe 3 by interposing a connecting first duct 3a having a calibrated diameter which is comprised between the diameters of the first spherical body 8 and of the second spherical body 9, so as to allow the passage only of the first spherical body 8 and retain the second body 9.
- the reservoir 7 is connected to the internal chamber 2b of the valve body 2 by means of a corresponding second duct (not shown in the drawings) leading into an upper region for contact between the first membrane 5 and the top of the internal chamber 2b and whose cross-section passage is adjustable by way of corresponding throttling means 11 being substantially constituted by a cylindrical selector 12 which is mounted so as to rotate transversely and hermetically in said cross-section passage and has through holes having predefined diameters; the rotation of said selector aligns with said cross-section a hole having a selectable diameter.
- the reservoir 7 is arranged externally with respect to the chamber 2b of the valve body 2; moreover, said reservoir 7 and the top of the chamber 2b of the valve body 2 are formed contiguously in an element 13 for the upper closure of said body.
- the reservoir 7 is composed of a hemispherical cavity 7a which is formed in the upper closure element 13 and is closed hermetically in a downward region by means of a second elastically deformable membrane 14.
- Both said first membrane 5 and said second membrane 14 are shaped like a spherical dome and in an alternative embodiment of the invention can also be formed as a single monolithic body.
- At least the first membrane 5 has, on the face directed towards the flow control element 6, a tooth 15 for contact with the first floating spherical body 8.
- the operation of the invention is as follows: in the initial condition, the submersion of the flushing valve 1 causes the inflow, into the chamber 2b of the valve body 2, of the liquid present in the sump pit, with automatic venting of the air that is present through the corresponding valve 2c and the consequent floating of the flow control element 6, thus making the pipe 3 and the choke 4 fully pervious.
- the choke 4 being in practice a Venturi tube, produces a suction which diffuses inside said chamber 2b, drawing the first membrane 5 downward.
- the second spherical body 9 When the second spherical body 9 has reached such a submersion level that it is influenced by the suction generated by the choke 4, it is drawn towards it until it arranges itself in front of it and closes it, interrupting the flow of water arriving from the pump and directed towards the sump pit.
- the pressure created accordingly in the chamber 2b also acts on the membrane 5, which gradually returns the oil to the reservoir 7 until said membrane 5 is allowed to regain its initial position.
- the spherical bodies 8 and 9 also tend to rise, being drawn by the flotation of the first body 8, up to the initial position.
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)
- Polarising Elements (AREA)
- Fluid-Driven Valves (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Reciprocating Pumps (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Multiple-Way Valves (AREA)
- External Artificial Organs (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO000098 | 2000-05-12 | ||
IT2000MO000098A IT1314629B1 (it) | 2000-05-12 | 2000-05-12 | Valvola di flussaggio |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1154085A1 true EP1154085A1 (de) | 2001-11-14 |
EP1154085B1 EP1154085B1 (de) | 2006-07-26 |
Family
ID=11450464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01110148A Expired - Lifetime EP1154085B1 (de) | 2000-05-12 | 2001-05-04 | Taktweise bearbeitendes Spülventil |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1154085B1 (de) |
AT (1) | ATE334266T1 (de) |
DE (1) | DE60121660T2 (de) |
ES (1) | ES2267623T3 (de) |
IT (1) | IT1314629B1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3309311A1 (de) * | 2016-10-17 | 2018-04-18 | Xylem IP Management S.à.r.l. | Spülventil und pumpstation mit solch einem spülventil |
CN108167454A (zh) * | 2017-12-28 | 2018-06-15 | 舒朋士泵业常州有限公司 | 一种混流式冲洗阀 |
CN108843830A (zh) * | 2018-08-30 | 2018-11-20 | 华南泵业有限公司 | 自动反冲洗阀及方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0359730A1 (de) * | 1988-09-13 | 1990-03-21 | ITT Flygt Aktiebolag | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
EP0384903A1 (de) * | 1989-02-21 | 1990-08-29 | Itt Flygt Ab | Vorrichtung zur automatischen Zirkulation in Abwasser-Pumpstationen |
EP0594548A1 (de) * | 1992-09-24 | 1994-04-27 | ITT Flygt Aktiebolag | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstation |
EP0623713A1 (de) * | 1993-04-29 | 1994-11-09 | Itt Flygt Ab | Verfahren und Einrichtung für automatische Zirkulation in einer Abwasserpumpanlage |
DE19754751C1 (de) * | 1997-12-10 | 1999-03-18 | Klein Schanzlin & Becker Ag | Thermostatisch bewegbares Spülventil |
WO1999054565A1 (en) * | 1998-04-22 | 1999-10-28 | Szuster Mirosdaw | A method and a device for automatic circulation in waste water tank |
-
2000
- 2000-05-12 IT IT2000MO000098A patent/IT1314629B1/it active
-
2001
- 2001-05-04 DE DE60121660T patent/DE60121660T2/de not_active Expired - Lifetime
- 2001-05-04 AT AT01110148T patent/ATE334266T1/de not_active IP Right Cessation
- 2001-05-04 ES ES01110148T patent/ES2267623T3/es not_active Expired - Lifetime
- 2001-05-04 EP EP01110148A patent/EP1154085B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0359730A1 (de) * | 1988-09-13 | 1990-03-21 | ITT Flygt Aktiebolag | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstationen |
EP0384903A1 (de) * | 1989-02-21 | 1990-08-29 | Itt Flygt Ab | Vorrichtung zur automatischen Zirkulation in Abwasser-Pumpstationen |
EP0594548A1 (de) * | 1992-09-24 | 1994-04-27 | ITT Flygt Aktiebolag | Vorrichtung zur automatischen Zirkulation in Abwasserpumpstation |
EP0623713A1 (de) * | 1993-04-29 | 1994-11-09 | Itt Flygt Ab | Verfahren und Einrichtung für automatische Zirkulation in einer Abwasserpumpanlage |
DE19754751C1 (de) * | 1997-12-10 | 1999-03-18 | Klein Schanzlin & Becker Ag | Thermostatisch bewegbares Spülventil |
WO1999054565A1 (en) * | 1998-04-22 | 1999-10-28 | Szuster Mirosdaw | A method and a device for automatic circulation in waste water tank |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3309311A1 (de) * | 2016-10-17 | 2018-04-18 | Xylem IP Management S.à.r.l. | Spülventil und pumpstation mit solch einem spülventil |
WO2018073138A1 (en) * | 2016-10-17 | 2018-04-26 | Xylem Ip Management S.À R.L. | Flush valve and pump station comprising such a flush valve |
CN108167454A (zh) * | 2017-12-28 | 2018-06-15 | 舒朋士泵业常州有限公司 | 一种混流式冲洗阀 |
CN108843830A (zh) * | 2018-08-30 | 2018-11-20 | 华南泵业有限公司 | 自动反冲洗阀及方法 |
CN108843830B (zh) * | 2018-08-30 | 2024-05-10 | 华南泵业(赣州)有限公司 | 自动反冲洗阀及方法 |
Also Published As
Publication number | Publication date |
---|---|
ATE334266T1 (de) | 2006-08-15 |
DE60121660D1 (de) | 2006-09-07 |
DE60121660T2 (de) | 2007-07-26 |
ES2267623T3 (es) | 2007-03-16 |
ITMO20000098A0 (it) | 2000-05-12 |
ITMO20000098A1 (it) | 2001-11-12 |
IT1314629B1 (it) | 2002-12-20 |
EP1154085B1 (de) | 2006-07-26 |
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