FR2559807A1

FR2559807A1 - Device for operating a rectangular wicket for a dam installed in a stream.

Info

Publication number: FR2559807A1
Application number: FR8402801A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-02-22
Filing date: 1984-02-22
Publication date: 1985-08-23
Also published as: FR2559807B1

Abstract

The invention relates to a device for operating a rectangular wicket for a dam installed in a stream. Each wicket pivots about a horizontal shaft which is solidly fixed to the bottom. The wicket is inclined via a triangular frame pivoting about a pivot pin. This frame is equipped with a roller which describes an arc of a circle whose centre is a pivot pin placed at the level of the horizontal shaft. Each gate may lie in a horizontal position after folding down on to the bottom, a vertical position or any other intermediate position when the dam is in service. The judicious assembly of these wickets and their control device constitute a dam for a stream, river, canal, inlet or outlet channel.

Description

la présente invention a pour objet à titre de produit industriel nouveau un dispositif de commande de vannes rectangulaires installées dans un cours d'eau.The present invention relates to, as a new industrial product, a device for controlling rectangular valves installed in a watercourse.

Figure 1.Chaque vanne 1 pivote autour d'un axe horizontal2 solidaire du radier 3.Les poussées hydrostatiques et hydrodynamiques de l'eau t 14 amont de la vanne sont reprises par un chevalet triangulaire 4 pivotant autour d'une rotule 5.Une extrémité du chevalet est équipée d'un galet 6 reposant sur un chemin de roulement 7 en arc de cercle dont le centre est la rotule 5.Figure 1.Each valve 1 pivots around a horizontal axis 2 integral with the apron 3.The hydrostatic and hydrodynamic thrusts of the water t 14 upstream of the valve are taken up by a triangular bridge 4 pivoting around a ball joint 5.One end the bridge is equipped with a roller 6 resting on a raceway 7 in an arc, the center of which is the ball 5.

L'autre extrémité du chevalet est eqilipes d'un palier 8 solidaire de la vanne la translation du galet permet d'incliner la vanne,soit dans une position sensiblement horizontale après rabattement sur le radier, soit dans une position verticale ou intermédiaire lorsque le barrage est en service.The other end of the bridge is eqilipes of a bearing 8 integral with the valve the translation of the roller makes it possible to tilt the valve, either in a substantially horizontal position after folding on the raft, or in a vertical or intermediate position when the dam is in service.

L'assemblage judicieux, figure 2,de ces vannes constitue un barrage.The judicious assembly, Figure 2, of these valves constitutes a dam.

L'inclinaison contrariée des chevalets permet d'annuler les poussées sur les maçonneries 15 ou piles de la bouchure.The opposed inclination of the easels makes it possible to cancel the thrusts on the masonry 15 or piles of the mouth.

la translation résultant du déplacement des galets en arc de cercle permet un accouplement rigide 9 et 10 des vannes paires et impaires numérotées à partir d'une pile de -barrage.Chaque tringlerie rigide est raccordée sur le chevalet par une rotule 11.the translation resulting from the displacement of the rollers in an arc of a circle allows a rigid coupling 9 and 10 of the even and odd numbered valves from a pile-up. Each rigid linkage is connected to the bridge by a ball joint 11.

La traction pour remonter les vannes peut s'effectuer par vérin hydraulique double effet 12, par chaine 13,poulie de renvoi 14 et motoréducteur 16 installé sur la pile 15 du barrage.The traction for raising the valves can be effected by a double-acting hydraulic cylinder 12, by chain 13, idler pulley 14 and geared motor 16 installed on the stack 15 of the dam.

Le - barrage est equipé d'une passerelle de service 17 avec garde- corps amovible180 Cette passerelle reste en position horizontale quelle que soit llinclinnison des vannes,par l'intermédaire dXuae tringlerie 19 formant parallélogramme déformable.Borsque le barrage est complètement abaissé, cette passerelle protege les mécanismes de commande des chocs provenant des corps flottants.The - dam is equipped with a service gangway 17 with removable guardrail180 This gangway remains in a horizontal position whatever the valve inclination, through the linkage 19 forming a deformable parallelogram. When the dam is completely lowered, this gangway protects the control mechanisms from shocks coming from floating bodies.

le but de ce barrage est de: a/ maintenir un niveau constant en un point situé B l'amont ouel que soit le débit du cours d'eau.the purpose of this dam is to: a / maintain a constant level at a point located upstream or whatever the flow of the watercourse.

b/dissiper l'énergie de la chute et procéder à l'aération (oxygénation) de L'eau grâce au fonctionnement possible en chicanes des vannes.b / dissipate the energy of the fall and proceed to the aeration (oxygenation) of the water thanks to the possible operation in baffles of the valves.

c/réguler le débit d cours d' eau en fonction des différentes inclinaisons des vannes. c / regulate the flow of water according to the different inclinations of the valves.

d/évacuer facilement tout corps flottant(troncs d'arbres, souches)par abaissement des vannes.d / easily evacuate any floating body (tree trunks, stumps) by lowering the valves.

Un carénage approprié ou jupe protège le mécanisme et permet aux corps flottants passant au dessus du barrage de ne pas entraver le fonctionnement des tringleries.An appropriate fairing or skirt protects the mechanism and allows the floating bodies passing over the dam not to hinder the functioning of the linkages.

Il est possible de commander chacun des deux groupes ce vannes par vérin hydraulique double effet.la connexion conve.Pble du circuit hydraulique entre ces deux vérins pernet selon le principe de la presse hydraulique de récupérer une partie de l'énergie provenant de la troussée hydrodynami- que de l'eau. It is possible to control each of the two groups this valve by double-acting hydraulic cylinder. The conve.Pble connection of the hydraulic circuit between these two pernet cylinders according to the principle of the hydraulic press to recover part of the energy coming from the hydrodynamic kit - only water.

Claims

1 - Rectangular valve control device for a dam installed in a watercourse, river, water supply or drainage channel, characterized in that it comprises a triangular easel (4) pivoting thanks to the presence a ball joint (5).

One end of the bridge carries a bearing (8) integral with the valve (1) the other end, equipped with a roller (6) taking up the hydrostatic and hydrodynamic thrusts of the water, describes an arc of circle around the ball joint .

The translation resulting from the movement of the roller allows the creation of two groups of valves working in opposition, either in baffle (oxygenation of water, dissipation of energy from the fall) or together (upper discharge).

This translation is controlled from the banks by hydraulic cylinder, by chain, pulley and gear motor.

Operation using two double-acting hydraulic cylinders makes it possible to obtain either the simultaneous operation of all the valves, or the baffle operation of one group of valves relative to the other, in this case, the thrust water dynamics on all the most vertical valves is recovered to be transmitted to the other hydraulic cylinder after suitable connections of the hydraulic circuit of the two cylinders according to the principle of the hydraulic press.

2 - Device according to claim 1 characterized in that an appropriate fairing or skirt protects the mechanism downstream of the dam and allows the floating bodies passing over the dam not to hinder Re operation of the control linkages.