EP0417262A1 - Belier hydraulique. - Google Patents
Belier hydraulique.Info
- Publication number
- EP0417262A1 EP0417262A1 EP90906251A EP90906251A EP0417262A1 EP 0417262 A1 EP0417262 A1 EP 0417262A1 EP 90906251 A EP90906251 A EP 90906251A EP 90906251 A EP90906251 A EP 90906251A EP 0417262 A1 EP0417262 A1 EP 0417262A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- chamber
- bell
- hydraulic ram
- clapper
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
- F04F7/02—Hydraulic rams
Definitions
- the present invention relates to an improved hydraulic ram.
- Hydraulic rams have been known for a very long time. These are water lifting devices using the shock in a suddenly closed pipe (water hammer) to force part of the liquid mass to rise to an altitude greater than the height of fall.
- the object of the present invention is precisely to improve in particular on this point the known devices.
- the subject of the invention is a hydraulic ram of the type comprising a chamber, a water inlet pipe, a leakage pipe provided with a valve and a bell communicating with said chamber by means of a valve system and provided with a water delivery outlet, characterized in that said valve system consists of a plurality of individual valves in parallel, each capable of closing a passage orifice formed in a wall separating said chamber of said bell, said valves being arranged on the side of said wall facing the bell.
- the leakage duct is arranged vertically, under the ram chamber and the valve thereof has a vertical axis extending in the chamber and mounted sliding in a fixed bearing being constantly and elastically returned to the high valve opening position.
- said valve further comprises a damping member for the end-of-travel stroke.
- said valve is placed in a venturi-shaped duct, slightly upstream of the smallest section, a rubber washer being provided at the level of contact between the valve and its seat.
- a filtering grid is interposed between the chamber of the ram and the bell so as to tangent the water inlet pipe.
- the water inlet conduit has a section which widens in the direction of the ram chamber and is formed by two half-conduits provided with lateral fixing flanges superimposed in the joint plane of the half conduits, said flanges being integral with lugs for anchoring the ram in an appropriate fixing structure.
- the ram shown in the drawings comprises a cylindrical chamber 1 with a vertical axis, provided with a horizontal water inlet duct 2, a vertical leakage duct 3 disposed below the chamber 1 and a bell cylindrical 4 disposed above the chamber 1 and provided with a connection 5 for water delivery.
- a connection 5 for water delivery for water delivery.
- valve system consisting of a plurality of ball-shaped valves 6 arranged in parallel each opposite a circular orifice 7 which it is capable of closing.
- the orifices or seats 7 are formed in a relatively thick plate 8 fixed in the joint plane of the bell 4 and of the chamber 1.
- the balls 6 are arranged on the side of the plate 8 opposite to the chamber 1. Each ball has a certain degree of freedom so as to be able to close its seat or, on the contrary, move away from this enough to allow a certain flow of water to pass.
- each ball 6 is confined in a space 9 delimited by dividing partitions 10 and a perforated rear plate 11 and for example pierced with a multitude of holes (not shown).
- the passage sections 12 in the latter are in the form of a venturi, the seat itself 13 of each ball 6 being in the approximate shape of a truncated cone .
- fifty balls 6 with a diameter of the order of 70 mm can be provided.
- the balls 6 are advantageously made of rubber or the like in order to limit the noise of impacts against the walls and plate 8, 10, 11.
- a grid 14 of separation between the chamber 1 and the cap .4 intended to filter the water this grid 14 being arranged in the extension of the conduit 2 which it 'tangents substantially at the level of the upper generatrix.
- This valve comprises a shutter member 15 of generally frustoconical shape, capable of bearing against an annular seat 16 carried by the conduit 3. More specifically , this duct has a general form of venturi with a section of minimum diameter immediately downstream of said seat 16.
- a ring 17 of rubber or the like is attached to the member 15 in line with the contact zone.
- the part 18 of the conduit 3 which is widening forms a diffuser.
- the shutter member 15 is fixed to the end of a vertical axis 19 slidably mounted in a sleeve 20 fixed by arms 21 to the wall of the ram chamber.
- the member 15 is constantly reminded in the high position, at a distance from the seat 16, by a spring 22, while at the end of the valve lowering stroke, a damping member, such as a Belleville washer 23 for example, is interposed between the sleeve 20 and the end of the axis 19. 4
- the interior of chamber 1 is accessible via a side inspection hatch 24.
- the water inlet duct 2 consists of two half-ducts 2a, 2b superimposed and provided lateral flanges 26 for fixing the half-ducts and for fixing the ram to two legs or lateral anchoring plates 27, themselves anchored in a concrete block 28 or in any appropriate structure for fixing the ram.
- the conduit 2 widens slightly in section in the direction of the chamber 1.
- the shutter member 15 returns to the upper position under the action of the spring 22 which immediately creates a new leak at the valve and the cycle begins again.
- the flow yield is further improved by the shape of the inlet duct 2 and by that of the rejection duct 3 in a venturi.
- the filter grid 14 is particularly efficient and reliable because it automatically self-cleans by the intermittent scanning provided by the water following the opening of the valve 15, this grid having its lower face in the extension of the upper generator of conduit 2.
- the invention is obviously not limited to the embodiment shown and described above, but on the contrary covers all variants thereof, in particular as regards the shapes, dimensions and arrangement of the valve members constituted by the balls 6 which can be replaced by any body capable of acting as a valve under the same conditions.
- the means (partitions 10, 11) for containing each ball 6 or valve member or the like can also be replaced by other means fulfilling the same function of retaining the balls while allowing the easy passage of the water in a position remote from the valves opposite their seat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Multiple-Way Valves (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Details Of Valves (AREA)
- Check Valves (AREA)
- Stored Programmes (AREA)
- Switches With Compound Operations (AREA)
- Glass Compositions (AREA)
- Surgical Instruments (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Lubricants (AREA)
- Saccharide Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8904492A FR2645214B1 (fr) | 1989-04-03 | 1989-04-03 | Belier hydraulique |
FR8904492 | 1989-04-03 | ||
PCT/FR1990/000231 WO1990012211A1 (fr) | 1989-04-03 | 1990-04-03 | Belier hydraulique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0417262A1 true EP0417262A1 (fr) | 1991-03-20 |
EP0417262B1 EP0417262B1 (fr) | 1994-07-27 |
Family
ID=9380419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90906251A Expired - Lifetime EP0417262B1 (fr) | 1989-04-03 | 1990-04-03 | Belier hydraulique |
Country Status (8)
Country | Link |
---|---|
US (1) | US5102303A (fr) |
EP (1) | EP0417262B1 (fr) |
AT (1) | ATE109249T1 (fr) |
CA (1) | CA2030549A1 (fr) |
DE (1) | DE69011019D1 (fr) |
FR (1) | FR2645214B1 (fr) |
OA (1) | OA09276A (fr) |
WO (1) | WO1990012211A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0655557B1 (fr) * | 1993-11-29 | 1998-03-25 | Schlumpf, Florian, Masch.Ing.HTL | Dispositif pour le refoulement de fluides |
US5549252A (en) * | 1994-07-18 | 1996-08-27 | Industrial Sound Technologies, Inc. | Water-hammer actuated crusher |
US20130062371A1 (en) * | 2011-09-12 | 2013-03-14 | James B. Wolff | System and method for creating a venturi effect within an orifice |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR370727A (fr) * | 1906-10-24 | 1907-02-18 | Niagara Hydraulic Engine C | Bélier hydraulique |
FR414007A (fr) * | 1909-06-08 | 1910-08-24 | Gelly Et Cie | Appareil hydraulique à chocs pour l'élévation de l'eau ou de tous autres liquides |
US1364617A (en) * | 1920-04-05 | 1921-01-04 | John C Daynix | Hydrokinetic mechanism |
US2424108A (en) * | 1943-05-31 | 1947-07-15 | Shell Dev | Hydraulic ram system |
GB803966A (en) * | 1956-08-02 | 1958-11-05 | Teruichi Yamaguchi | Improvements in or relating to hydraulic rams |
-
1989
- 1989-04-03 FR FR8904492A patent/FR2645214B1/fr not_active Expired - Lifetime
-
1990
- 1990-04-03 EP EP90906251A patent/EP0417262B1/fr not_active Expired - Lifetime
- 1990-04-03 WO PCT/FR1990/000231 patent/WO1990012211A1/fr active IP Right Grant
- 1990-04-03 AT AT90906251T patent/ATE109249T1/de not_active IP Right Cessation
- 1990-04-03 CA CA002030549A patent/CA2030549A1/fr not_active Abandoned
- 1990-04-03 US US07/613,648 patent/US5102303A/en not_active Expired - Fee Related
- 1990-04-03 DE DE69011019T patent/DE69011019D1/de not_active Expired - Lifetime
- 1990-12-03 OA OA59909A patent/OA09276A/fr unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9012211A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0417262B1 (fr) | 1994-07-27 |
ATE109249T1 (de) | 1994-08-15 |
US5102303A (en) | 1992-04-07 |
DE69011019D1 (de) | 1994-09-01 |
OA09276A (fr) | 1992-08-31 |
WO1990012211A1 (fr) | 1990-10-18 |
FR2645214A1 (fr) | 1990-10-05 |
CA2030549A1 (fr) | 1990-10-04 |
FR2645214B1 (fr) | 1992-11-27 |
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