EP0032086B1 - Water pumping installation with a regulable floating water intake - Google Patents

Water pumping installation with a regulable floating water intake Download PDF

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Publication number
EP0032086B1
EP0032086B1 EP19800401816 EP80401816A EP0032086B1 EP 0032086 B1 EP0032086 B1 EP 0032086B1 EP 19800401816 EP19800401816 EP 19800401816 EP 80401816 A EP80401816 A EP 80401816A EP 0032086 B1 EP0032086 B1 EP 0032086B1
Authority
EP
European Patent Office
Prior art keywords
water
head
buoyant
pumping
pumping installation
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.)
Expired
Application number
EP19800401816
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German (de)
French (fr)
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EP0032086A2 (en
EP0032086A3 (en
Inventor
Paul Bergeron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BERGERON-RATEAU
Bergeron SA
Original Assignee
BERGERON-RATEAU
Bergeron SA
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Filing date
Publication date
Application filed by BERGERON-RATEAU, Bergeron SA filed Critical BERGERON-RATEAU
Publication of EP0032086A2 publication Critical patent/EP0032086A2/en
Publication of EP0032086A3 publication Critical patent/EP0032086A3/en
Application granted granted Critical
Publication of EP0032086B1 publication Critical patent/EP0032086B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems

Definitions

  • the present invention relates to a pumping installation for pumping water on a site likely to present a significant tidal range, comprising a pumping device located on the ground, a floating head of water intake and a pipe system connecting the floating head of water intake to the pumping apparatus, the piping system comprising a ground pipe connected to the pumping apparatus and a flexible and flexible cuff which connects said floating head to the ground pipe and which allows a vertical movement of said floating head as a result of a variation in the water level, said floating head comprising a suction chamber with a water inlet opening and a sealed box forming a float, which is mounted above above the suction chamber.
  • FR-A-1 283 671 already discloses a pumping installation of the above-mentioned type. It is an installation intended for the depletion of water in mines, quarries, excavations and others, in which the strainer, i.e. the intake head, is designed to be able to float in a vertical position in the liquid being pumped.
  • the strainer i.e. the intake head
  • no means are provided for adjusting the level or the depth at which the water inlet opening of the water intake head operates below the level of the water.
  • the present invention aims to provide a water pumping installation meeting the above-mentioned requirements, without having the drawbacks of the second known installation.
  • the water pumping installation according to the invention is characterized in that the floating head comprises means for adjusting its level of flotation by varying its weight in the water, so that, in operation , its water inlet opening remains at the desired depth below the water level regardless of the water level.
  • said adjustment means may comprise a ballast compartment providing a fixed ballasting function, and at least one other sealed box capable of receiving through a filling orifice a mass of ballast having a weight which is chosen to determine the desired level of buoyancy of said floating head.
  • the suction chamber has an elongated cross section and has an upper wall, a lower wall and two side walls, an open front end, which forms said water inlet opening, and an open rear end, which is connected to a rigid evacuation pipe which is itself connected, at its rear end, to the flexible cuff.
  • a grille can be mounted at the open front end of the suction chamber.
  • the waterproof case forming a float is fixed to the upper wall of the suction chamber, the ballast compartment is fixed to the lower wall of said chamber and another waterproof case is fixed to each of the two side walls of the chamber.
  • the suction chamber is preferably shaped like a pyramid trunk with a rectangular base, to cause a gradual acceleration of the speed of flow of the water.
  • the entrance to the suction chamber is 2 m high for immersion at a depth of 1.50 m
  • the water suction speed is 0.50 m / s to the grid to avoid sucking the floating bodies and reaches 2.40 m / s in the evacuation pipe so that the settling of sand or mud is reduced.
  • FIG. 1 shows a floating water intake head 1 secured to its rigid discharge pipe 2, itself connected to the earth pipe 3 by a flexible and flexible cuff 4.
  • the head of the water intake has a suction chamber 5 (FIG. 2) of generally truncated pyramid shape, the side facing the water is provided with grids 6 and the opposite side extended by a rigid discharge pipe. 2.
  • the suction chamber 5 is surmounted by a waterproof box shaped as a float 7, its lower part supports a ballast compartment 8 and its lateral faces each carry a waterproof box 9 (FIG. 3) intended to be more or less ballasted according to the buoyancy level sought for the head; these boxes 9 have for this purpose a filling orifice 10 at their top ( Figure 4).
  • the water intake head is guyed by a tube 13 rigidly connecting its upper end to the rear end of its discharge pipe 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

La présente invention a pour objet une installation de pompage pour pomper de l'eau sur un site susceptible de présenter un marnage important, comprenant un appareil de pompage situé à terre, une tête flottante de prise d'eau et un système de canalisation reliant la tête flottante de prise d'eau à l'appareil de pompage, le système de canalisation comportant une canalisation à terre reliée à l'appareil de pompage et une manchette souple et flexible qui relie ladite tête flottante à la canalisation à terre et qui permet un mouvement vertical de ladite tête flottante par suite d'une variation du niveau de l'eau, ladite tête flottante comportant une chambre d'aspiration avec une ouverture d'entrée d'eau et un caisson étanche formant un flotteur, qui est monté au-dessus de la chambre d'aspiration.The present invention relates to a pumping installation for pumping water on a site likely to present a significant tidal range, comprising a pumping device located on the ground, a floating head of water intake and a pipe system connecting the floating head of water intake to the pumping apparatus, the piping system comprising a ground pipe connected to the pumping apparatus and a flexible and flexible cuff which connects said floating head to the ground pipe and which allows a vertical movement of said floating head as a result of a variation in the water level, said floating head comprising a suction chamber with a water inlet opening and a sealed box forming a float, which is mounted above above the suction chamber.

On connaît déjà par le brevet FR-A-1 283 671 une installation de pompage du type sus-indiqué. Il s'agit d'une installation destinée à l'épuisement de l'eau dans les mines, carrières, excavations et autres, dans laquelle la crépine, c'est-à-dire la tête de prise d'eau, est conçue pour pouvoir flotter dans une position verticale dans le liquide en cours de pompage. Toutefois, dans cette installation connue, il n'est prévu aucun moyen permettant de régler le niveau ou la profondeur à laquelle l'ouverture d'entrée d'eau de la tête de prise d'eau opère au-dessous du niveau de l'eau.FR-A-1 283 671 already discloses a pumping installation of the above-mentioned type. It is an installation intended for the depletion of water in mines, quarries, excavations and others, in which the strainer, i.e. the intake head, is designed to be able to float in a vertical position in the liquid being pumped. However, in this known installation, no means are provided for adjusting the level or the depth at which the water inlet opening of the water intake head operates below the level of the water.

Or, certaines installations de pompage destinées à être utilisées sur un site susceptible de présenter un marnage important, de l'ordre de six mètres, doivent répondre aux impératifs suivants :

  • - distance minimum d'enfoncement de la tête de prise d'eau proprement dite par rapport à la surface de l'eau d'environ 1,50 mètre pour éviter d'aspirer les corps flottants,
  • - niveau minimum de la tête de prise d'eau par rapport au fond déterminé pour éviter d'aspirer des matériaux constitutifs du fond marin ou du lit de la rivière.
However, certain pumping installations intended to be used on a site likely to present a significant tidal range, of the order of six meters, must meet the following requirements:
  • - minimum insertion distance of the water intake head itself from the surface of the water of about 1.50 meters to avoid sucking the floating bodies,
  • - minimum level of the water intake head relative to the determined bottom to avoid sucking up materials constituting the seabed or the river bed.

On connaît par ailleurs, par le brevet DE-B-1 528 871, une installation de pompage d'eau dans laquelle la tête de prise d'eau est immergée à une profondeur déterminée et réglable sous un flotteur qui supporte également l'appareil de pompage. Toutefois, cette deuxième installation connue n'est pas satisfaisante dans la mesure où elle nécessite un flotteur de grandes dimensions pour pouvoir supporter aussi l'appareil de pompage. Cet inconvénient est d'autant plus gênant pour des installations de grande puissance qui imposeraient alors, en raison du poids et du volume de la tête de prise d'eau et de l'appareil de pompage, un flotteur de très grandes dimensions et difficile à ancrer dans certains sites par suite de ses dimensions démesurées.Furthermore, from patent DE-B-1 528 871, a water pumping installation is known in which the water intake head is immersed at a determined and adjustable depth under a float which also supports the pumping. However, this second known installation is not satisfactory insofar as it requires a large float to be able to also support the pumping apparatus. This drawback is all the more annoying for large power installations which would then impose, because of the weight and volume of the water intake head and of the pumping apparatus, a very large float which is difficult to anchor in certain sites due to its disproportionate dimensions.

En outre, dans cette deuxième installation connue, la profondeur à laquelle la tête de prise d'eau opère au-dessous du niveau de l'eau, est réglée au moyen de bras télescopiques qui relient ladite tête et l'appareil de pompage au flotteur. Une telle technique de réglage n'est pas non plus satisfaisante dans la mesure où elle fait appel à des organes mécaniques qui sont sujets à la corrosion et à des incrustations diverses, surtout en milieu marin.Furthermore, in this second known installation, the depth at which the water intake head operates below the water level, is adjusted by means of telescopic arms which connect said head and the pumping apparatus to the float. . Such an adjustment technique is also not satisfactory insofar as it calls upon mechanical members which are subject to corrosion and to various incrustations, especially in the marine environment.

La présente invention a pour but de fournir une installation de pompage d'eau répondant aux impératifs sus-mentionnés, sans présenter les inconvénients de la deuxième installation connue.The present invention aims to provide a water pumping installation meeting the above-mentioned requirements, without having the drawbacks of the second known installation.

A cet effet, l'installation de pompage d'eau suivant l'invention est caractérisée en ce que la tête flottante comporte des moyens pour régler son niveau de flottaison par variation de son poids dans l'eau, de telle façon que, en fonctionnement, son ouverture d'entrée d'eau reste à la profondeur désirée sous le niveau de l'eau quel que soit le niveau de l'eau.To this end, the water pumping installation according to the invention is characterized in that the floating head comprises means for adjusting its level of flotation by varying its weight in the water, so that, in operation , its water inlet opening remains at the desired depth below the water level regardless of the water level.

Suivant une forme d'exécution de l'invention, lesdits moyens de réglage peuvent comprendre une soute à ballast assurant une fonction de lestage fixe, et au moins un autre caisson étanche susceptible de recevoir à travers un orifice de remplissage une masse de ballast ayant un poids qui est choisi pour déterminer le niveau désiré de flottaison de ladite tête flottante. La chambre d'aspiration a une section transversale de forme allongée et comporte une paroi supérieure, une paroi inférieure et deux parois latérales, une extrémité avant ouverte, qui forme ladite ouverture d'entrée d'eau, et une extrémité arrière ouverte, qui est reliée à une conduite rigide d'évacuation qui est elle-même reliée, à son extrémité postérieure, à la manchette souple. Une grille peut être montée à l'extrémité avant ouverte de la chambre d'aspiration. Le caisson étanche formant flotteur est fixé à la paroi supérieure de la chambre d'aspiration, la soute à ballast est fixée à la paroi inférieure de ladite chambre et un autre caisson étanche est fixé à chacune des deux parois latérales de la chambre.According to one embodiment of the invention, said adjustment means may comprise a ballast compartment providing a fixed ballasting function, and at least one other sealed box capable of receiving through a filling orifice a mass of ballast having a weight which is chosen to determine the desired level of buoyancy of said floating head. The suction chamber has an elongated cross section and has an upper wall, a lower wall and two side walls, an open front end, which forms said water inlet opening, and an open rear end, which is connected to a rigid evacuation pipe which is itself connected, at its rear end, to the flexible cuff. A grille can be mounted at the open front end of the suction chamber. The waterproof case forming a float is fixed to the upper wall of the suction chamber, the ballast compartment is fixed to the lower wall of said chamber and another waterproof case is fixed to each of the two side walls of the chamber.

La chambre d'aspiration est préférablement conformée en tronc de pyramide à base rectangulaire, pour provoquer une accélération progressive de la vitesse d'écoulement de l'eau.The suction chamber is preferably shaped like a pyramid trunk with a rectangular base, to cause a gradual acceleration of the speed of flow of the water.

A titre d'exemple, l'entrée de la chambre d'aspiration a une hauteur de 2 m pour une immersion à une profondeur de 1,50 m, la vitesse d'aspiration de l'eau est de 0,50 m/s à la grille pour éviter d'aspirer les corps flottants et atteint 2,40 m/s dans la conduite d'évacuation pour que la décantation de sable ou de vase soit réduite.For example, the entrance to the suction chamber is 2 m high for immersion at a depth of 1.50 m, the water suction speed is 0.50 m / s to the grid to avoid sucking the floating bodies and reaches 2.40 m / s in the evacuation pipe so that the settling of sand or mud is reduced.

On décrira plus en détail ci-après, à titre indicatif, un mode de réalisation préféré de l'installation de pompage d'eau faisant l'objet de la présente invention, en référence au dessin annexé, sur lequel :

  • La figure 1 montre en élévation latérale une vue d'ensemble de la tête de prise d'eau, de la manchette souple et du départ de la canalisation à terre de l'installation de pompage.
  • La figure 2 montre à plus grande échelle la tête de prise d'eau vue en coupe faite suivant la ligne II-Il de la figure 3.
  • Les figures 3 et 4 sont respectivement des vues de face et de dessus correspondantes.
A preferred embodiment of the water pumping installation which is the subject of the present invention will be described in more detail below, for reference, with reference to the appended drawing, in which:
  • Figure 1 shows in side elevation an overview of the water intake head, the flexible cuff and the start of the earth pipe from the pumping installation.
  • FIG. 2 shows on a larger scale the water intake head seen in section made along line II-II of FIG. 3.
  • Figures 3 and 4 are respectively front and corresponding top views.

La figure 1 montre une tête de prise d'eau flottante 1 solidaire de sa conduite d'évacuation rigide 2, elle-même reliée à la canalisation à terre 3 par une manchette souple et flexible 4.FIG. 1 shows a floating water intake head 1 secured to its rigid discharge pipe 2, itself connected to the earth pipe 3 by a flexible and flexible cuff 4.

La tête de la prise d'eau présente une chambre d'aspiration 5 (figure 2) de forme générale tronc- pyramidale dont la face tournée vers l'eau est garnie de grilles 6 et la face opposée prolongée par une conduite d'évacuation rigide 2.The head of the water intake has a suction chamber 5 (FIG. 2) of generally truncated pyramid shape, the side facing the water is provided with grids 6 and the opposite side extended by a rigid discharge pipe. 2.

La chambre d'aspiration 5 est surmontée d'un caisson étanche conformé en flotteur 7, sa partie inférieure supporte une soute à ballast 8 et ses faces latérales portent chacune un caisson étanche 9 (figure 3) destiné à être plus ou moins lesté selon le niveau de flottaison recherché pour la tête ; ces caissons 9 présentent à cet effet un orifice de remplissage 10 à leur sommet (figure 4).The suction chamber 5 is surmounted by a waterproof box shaped as a float 7, its lower part supports a ballast compartment 8 and its lateral faces each carry a waterproof box 9 (FIG. 3) intended to be more or less ballasted according to the buoyancy level sought for the head; these boxes 9 have for this purpose a filling orifice 10 at their top (Figure 4).

Le guidage vertical de la tête de prise d'eau suivant le marnage, nécessaire pour résister à la force du courant, est assuré par deux pieux en béton 11 ancrés au sol respectivement de part et d'autre de la tête, cette dernière présentant le long de ses faces latérales une surface de glissement préférablement constituée par un patin 12 en chêne.The vertical guiding of the water intake head according to the drawdown, necessary to resist the force of the current, is ensured by two concrete piles 11 anchored to the ground respectively on either side of the head, the latter having the along its lateral faces a sliding surface preferably constituted by a shoe 12 in oak.

Pour pallier tout risque de basculement, la tête de prise d'eau est haubanée par un tube 13 reliant rigidement son extrémité supérieure à l'extrémité postérieure de sa conduite d'évacuation 2.To overcome any risk of tilting, the water intake head is guyed by a tube 13 rigidly connecting its upper end to the rear end of its discharge pipe 2.

Il est du reste bien entendu que de nombreuses modifications peuvent être apportées au mode de réalisation de la tête de prise d'eau qui a été décrit ci-dessus, en référence au dessin annexé, sans que l'on s'écarte pour cela du cadre de la présente invention, dont l'étendue de la protection est déterminée par la teneur des revendications ; c'est ainsi notamment que son guidage vertical pourrait être réalisé, au lieu des pieux 11 précités, par des chaînes reliant ladite tête à la berge.It is, of course, moreover that many modifications can be made to the embodiment of the water intake head which has been described above, with reference to the appended drawing, without departing from the scope of the present invention, the scope of protection of which is determined by the content of the claims; thus in particular that its vertical guidance could be achieved, instead of the above-mentioned piles 11, by chains connecting said head to the bank.

Claims (8)

1. Pumping installation for pumping water at a site which is subject to substantial variation in water level, comprising a pumping apparatus situated on land, a buoyant water-inlet head (1) and a pipe system (3, 4) connecting the buoyant water-inlet head (1) to the pumping apparatus, the pipe system (3, 4) comprising a pipe (3) to land connected to the pumping apparatus and a flexible and pliable sleeve which joins said buoyant head (1) to the land pipe (3) and which allows a vertical movement of said buoyant head (1) caused by a variation in the water level, said buoyant head (1) comprising an intake chamber (5) with a water-inlet opening and a water-tight casing (7) forming a float which is disposed above the intake chamber (5), characterised in that the buoyant head (1) comprises means for adjusting its flotation level by variation of its weight in the water, in such a way that, in operation, its water-inlet opening remains at the desired depth beneath the water level, whatever the water level may be.
2. Pumping installation according to Claim 1, characterised in that said adjusting means (8, 9, 10) comprise a ballast compartment (8) ensuring a fixed ballasting function, and at least another watertight casing (9) able to receive through a filling orifice (10) a quantity of ballast having a weight which is selected so as to determine the desired flotation level of said buoyant head (1).
3. Pumping installation according to Claim 2, characterised in that the intake chamber (5) has a cross-section of oblong shape and comprises an upper wall, a lower wall and two side walls, an open front end which forms said water-inlet opening, and an open rear end which is connected to a rigid outlet pipe (2) which is itself connected, at its rear end, to the pliable sleeve (4), in that a grille (6) is fitted at the open front end of the intake chamber (5), and in that the watertight casing (7) forming a float is fixed to the upper wall of the intake chamber (5), the ballast compartment (8) is fixed to the lower wall of said chamber (5) and another watertight casing (9) is fixed to each of the two side walls of the chamber (5).
4. Pumping installation according to Claim 3, characterised in that said intake chamber (5) has approximately the shape of a truncated pyramid with rectangular base.
5. Pumping installation according to any one of Claims 1 to 4, characterised in that it further comprises guide means (11, 12) associated with the buoyant head (1) for guiding its vertical movement caused by variations in the water level and for resisting the transverse forces of water currents.
6. Pumping installation according to Claim 5, characterised in that the guide means (11, 12) comprise two concrete piles (11) respectively disposed on either side of the buoyant head (1), and slides (12) which are fixed to the buoyant head (1) on either side thereof and which are in sliding contact respectively with the two piles (11).
7. Pumping installation according to Claim 5, characterised in that the guide means are constituted by chains which connect the buoyant head (1) to land.
8. Pumping installation according to any one of Claims 3 to 7, characterised in that a bracing tube (13) rigidly connects the upper part of the buoyant head (1) to the rear end of the outlet pipe (2).
EP19800401816 1979-12-26 1980-12-18 Water pumping installation with a regulable floating water intake Expired EP0032086B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7931654A FR2472630A1 (en) 1979-12-26 1979-12-26 FLOATING WATER INTAKE HEAD FOR WATER PUMPING INSTALLATION
FR7931654 1979-12-26

Publications (3)

Publication Number Publication Date
EP0032086A2 EP0032086A2 (en) 1981-07-15
EP0032086A3 EP0032086A3 (en) 1981-07-29
EP0032086B1 true EP0032086B1 (en) 1983-12-28

Family

ID=9233154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800401816 Expired EP0032086B1 (en) 1979-12-26 1980-12-18 Water pumping installation with a regulable floating water intake

Country Status (5)

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EP (1) EP0032086B1 (en)
JP (1) JPS5692378A (en)
DE (1) DE3066033D1 (en)
ES (1) ES498610A0 (en)
FR (1) FR2472630A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232307A (en) * 1991-08-09 1993-08-03 Nouri Hasan M Hydraulic oscillating diverter
DE4241888C1 (en) * 1992-12-11 1994-05-11 Georg Klas Mud suction car
CN115434951B (en) * 2022-09-22 2023-06-02 武汉市园林建筑工程有限公司 Rectifying structure for improving water inflow state of porous inflow pump station

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB329547A (en) * 1929-06-20 1930-05-22 Robert Loudon Aitken Improvements in and relating to suction dredging
GB801854A (en) * 1956-02-10 1958-09-24 Stephen Michael Hawes Improvements in land drainage systems
FR1283671A (en) * 1961-03-14 1962-02-02 Megator Pumps Compressor Improved strainers for suction pumps
DE1528871B1 (en) * 1966-08-19 1970-02-19 Univ Rostock Floating small pumping station that can be transported on land for draining or irrigating agricultural areas
JPS514521A (en) * 1974-07-01 1976-01-14 Fuji Electric Co Ltd Fukusudaino jiseishikichokuryumuseiryushidendokino seigyosochi
FR2309675A1 (en) * 1975-04-29 1976-11-26 Patworld Anstalt Submarine pump to extract sand forom sea bed - iis mounted in bell housing raised or lowered by controlling air pressure in bell via valves
JPS5438563U (en) * 1977-08-19 1979-03-14

Also Published As

Publication number Publication date
JPS5692378A (en) 1981-07-27
ES8200429A1 (en) 1981-11-16
EP0032086A2 (en) 1981-07-15
FR2472630B1 (en) 1983-04-15
ES498610A0 (en) 1981-11-16
EP0032086A3 (en) 1981-07-29
DE3066033D1 (en) 1984-02-02
FR2472630A1 (en) 1981-07-03

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