EP0012144B1 - Apparatus for filling cisterns - Google Patents

Apparatus for filling cisterns Download PDF

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Publication number
EP0012144B1
EP0012144B1 EP19780400216 EP78400216A EP0012144B1 EP 0012144 B1 EP0012144 B1 EP 0012144B1 EP 19780400216 EP19780400216 EP 19780400216 EP 78400216 A EP78400216 A EP 78400216A EP 0012144 B1 EP0012144 B1 EP 0012144B1
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EP
European Patent Office
Prior art keywords
pipe
lever
carriage
axis
orifice
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
EP19780400216
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German (de)
French (fr)
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EP0012144A1 (en
Inventor
Stéphane Bosser
Pierre Heitz
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Compagnie dEtudes et de Realisation de Cybernetique Industrielle CERCI
Original Assignee
Compagnie dEtudes et de Realisation de Cybernetique Industrielle CERCI
Priority date (The priority date 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 date listed.)
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Application filed by Compagnie dEtudes et de Realisation de Cybernetique Industrielle CERCI filed Critical Compagnie dEtudes et de Realisation de Cybernetique Industrielle CERCI
Priority to EP19780400216 priority Critical patent/EP0012144B1/en
Priority to DE7878400216T priority patent/DE2861612D1/en
Publication of EP0012144A1 publication Critical patent/EP0012144A1/en
Application granted granted Critical
Publication of EP0012144B1 publication Critical patent/EP0012144B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/005—Spouts

Definitions

  • the subject of the invention is an installation for filling tanks placed on railway wagons or road vehicles, usable in particular in hydrocarbon refineries.
  • Automatic tank filling systems used in refineries normally include a frame overhanging a tank circulation path one behind the other and on which is mounted a pipe, generally telescopic, capable of penetrating by vertical movement along its axis, in its opening of the tank placed below it.
  • a pipe generally telescopic, capable of penetrating by vertical movement along its axis, in its opening of the tank placed below it.
  • the filling pipe is often mounted on a trolley which can be moved on the frame in the longitudinal direction of the taxiway so as to position the pipe above of the orifice (FR-A-1 370 868).
  • the invention relates to improvements which make it possible to remedy these drawbacks.
  • the pipe is rotatably mounted, via pins, on the support carriage around an axis substantially parallel to the longitudinal direction of movement and the support carriage is provided with a control means of a rotation of the pipe around said trunnions determining an inclination of said pipe with respect to the vertical simultaneous and proportional to the transverse displacement movement of the carriage for the alignment of the longitudinal axis of the pipe with the axis of the orifice.
  • the means for controlling the inclination of the pipe comprises a lever fixed on one of the pins, parallel to the longitudinal axis of the pipe and the end of which is at contact of a cam formed on the frame parallel to the transverse direction of movement of the carriage, said cam consisting, on either side of a central position for which the pipe and the lever are vertical, of two ramps support of the end of the lever determining the inclination of the lever and of the pipe when the carriage deviates transversely from said central position.
  • FIG 1 there is shown schematically and in perspective a tank loading installation 1 capable of running one behind the other on a traffic lane 11.
  • the installation is mounted on a frame 2 composed for example of gantry cranes 20 overhanging the traffic lane 11 and connected by longitudinal beams 21 along which the filling pipe 3 can move.
  • the pipe 3 can move relative to the frame in the longitudinal direction of track 11 and in the transverse direction so that it can be positioned precisely, by an operator, above the loading orifice 12 of the tank 1.
  • the pipe 3 is carried by a carriage 4 which can move along a transverse beam 5 which is itself supported at its ends by bed bases 50 movable longitudinally along raceways formed on the beams 21.
  • the pipe 3 is pivotally mounted on the carriage 4 around pins 6 which determine a pivot axis 60 parallel to the longitudinal axis of the track 11.
  • the pins 6 support themselves , by means of bearings, on support chairs 41 formed on the carriage 4.
  • the pipe 3 can be of any known type allowing it to be lowered inside the tank 1 by sliding along its axis 30. On the other hand, it must obviously be connected to a pipe 31 for supplying fluid tank filling.
  • a known type of pipe consisting of one or more tubes mounted to slide telescopically inside a fixed tube through which the assembly is supported. by the cart. This is why, in Figure 1, there is shown the fixed tube 3 on which are fixed the support pins 6 and the movable tube 32 capable of being lowered vertically by any means such as a winch or a jack and which can also be made up of several telescopic elements.
  • the pipe 31 for supplying fluid must be able to follow the movements of the pipe.
  • This can be achieved by conventional means.
  • one of the pins it is particularly advantageous for one of the pins to be hollow and to constitute a fluid inlet pipe inside the pipe 3, this pipe being connected to the fluid supply pipe 31. of the pipe by a rotary joint 33 which constitutes the pivot bearing of the journal.
  • FIG. 2 schematically shows the tank 1 mounted on a chassis 10 rolling on track 11.
  • the upper orifice 12 of the tank may be offset. This generally results from a subsidence of the suspension of the chassis 10 or from a displacement of the tank on its chassis and, in practice, this displacement can be likened to a rotation of an angle A around a center that the it can be located approximately at the height of the axis of the axle 13 of the tank car.
  • a rotation of the pipe is controlled around the axis of the pins 60 to give it an inclination proportional to its transverse displacement so that the axis 30 of the pipe inclines in the direction 300 passing through the center 0 of offset of the tank and thus coincides with the axis of the orifice 12, which guarantees good penetration of the pipe into the tank.
  • the pins 6 will be placed so that the pipe is balanced with respect to the axis 60 of the pins so that it takes only a relatively small effort to control the inclination of the pipe and keep it in this position.
  • This balancing is not very difficult to obtain since the upper part of the tube 3 often supports an installation for controlling the descent of the pipe, such as a jack, which is quite heavy and which can balance the weight of the pipes.
  • telescopic 32 if the position of the support 60 is well chosen.
  • the inclination of the pipe is controlled by a lever 7 which is wedged on one of the pins 61 of the pipe and which extends downwards parallel to the axis 30.
  • the end of the lever 7 is in contact with a cam 70 fixed on the transverse beam 5 and which consists of two ramps 75, 76 extending parallel to the transverse direction of movement on either side of the central position for which the pipe is vertical.
  • a roller 71 is placed at the end of the lever 7 to roll on the ramps 75, 76. The inclination of these can be calculated quite easily so that, as shown in the figure, the axis 30 parallel to the lever 7 passes through the point 0 when the axis 60 of the pins is moved on either side of the central position.
  • FIG 3 there is shown the transverse beam 5 and the carriage 4 provided with two chairs 41 for supporting the pins.
  • One of the journals, 61 is supported on the corresponding chair 41 by means of a bearing 62.
  • the other journal 63 is a hollow cylinder which constitutes a pipe for the arrival of the fluid at the inside of the pipe 3 connected to the pipe 31 by a rotating joint 33 which constitutes the bearing on the corresponding chair 41.
  • the installation includes an automatic tilt error compensation device which, after a first test where it has been found that the end of the pipe does not penetrate directly into the orifice, to detect the lateral force caused by the support of the end of the pipe on the edge of the orifice and by a servo system, to transform this support force into an additional transverse displacement of the carriage modifying the inclination of the pipe until the abutment force on the edge of the orifice is removed.
  • FIGS. 4 and 5 Such a device is shown diagrammatically in FIGS. 4 and 5.
  • This effort tends to rotate the pipe around the pins of an angle B, its axis taking direction 301.
  • the lever 7 Since the lever 7 is blocked, this rotation of the axis can only occur if there is a possibility of angular sliding between the pipe and the lever. This possibility is given by a more sophisticated method of mounting the lever 7 on the pin 61 (shown in FIG. 5). Indeed, the lever 7 is connected to the pin 61 by an elastic connection consisting for example of a rubber ring 71 whose internal face is fixed to the pin 61 and whose external face is fixed to the wall of a bore on the lever for the passage of the pin 61. On the other hand, the lever is centered on the pin so that the ring 71 can allow a slight angular sliding of the lever relative to the pipe without offset of the lever.
  • the characteristics of the ring 71 are provided so that this angular sliding does not occur until a certain threshold of the torque applied by the lever on the journal which is greater than the torque necessary to tilt the pipe.
  • the pipe could be well balanced around its trunnion axis so that the inclination force is fairly low. It is therefore possible to use an elastic seal which allows the lever to control the rotation of the pipe without angular sliding when the pipe is free.
  • the lateral force which intervenes makes it possible, taking into account the lever arm equal to the distance between the orifice and the axis of the trunnions, to deform the elastic connection 71.
  • This angular sliding can be measured by a sensor comprising a body 72 placed in an axial bore of the pin 61 and wedged with respect thereto and the measuring device of which is driven by an axis 73 made integral in rotation with the lever 7 by a connecting piece 74.
  • the angle of rotation B of the axis of the pipe relative to the axis of the lever 7 is measured by the sensor 72 which can emit a signal corresponding in size and in sign to the value and the direction of the angle B.
  • This signal is interpreted by a regulation system 43 of a conventional type which, by electronic or hydraulic means can automatically trigger the motor 44 for controlling the movement of the carriage 4 to control the movement of the carriage and therefore of the axis of the trunnions in the direction of the force applied to the pipe so as to cancel this force .
  • the movement of the carriage can be controlled in any known manner, by electronic or hydraulic means. It can be carried out either in step-by-step mode, the displacements being then carried out in successive units, or, in proportional mode corresponding to the value of the angle of deviation B. It is indeed possible to establish an empirical law of correlation between the angle B from which the axis 300 of the inclined pipe is removed by pressing on the orifice 12 and the angle C between the axis 300 and its theoretical direction 302 as a function of the characteristics of the pipe and in particular of the elastic connection between the lever and the pin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Description

L'invention a pour objet une installation de remplissage de citernes placées sur des wagons ferroviaires ou des véhicules routiers, utilisable notamment dans les raffineries d'hydrocarbures.The subject of the invention is an installation for filling tanks placed on railway wagons or road vehicles, usable in particular in hydrocarbon refineries.

Les installations de remplissage automatique de citernes utilisées dans les raffineries comportent normalement une charpente surplombant une voie de circulation des citernes l'une derrière l'autre et sur laquelle est montée une conduite, généralement télescopique, susceptible de pénétrer par déplacement vertical le long de son axe, dans son orifice de la citerne placé au-dessous d'elle. Comme il n'est pas facile de positionner avec précision la citerne sous l'installation, la conduite de remplissage est souvent montée sur un chariot déplaçable sur la charpente selon la direction longitudinale de la voie de circulation de façon à positionner la conduite au-dessus de l'orifice (FR-A-1 370 868)..Automatic tank filling systems used in refineries normally include a frame overhanging a tank circulation path one behind the other and on which is mounted a pipe, generally telescopic, capable of penetrating by vertical movement along its axis, in its opening of the tank placed below it. As it is not easy to precisely position the tank under the installation, the filling pipe is often mounted on a trolley which can be moved on the frame in the longitudinal direction of the taxiway so as to position the pipe above of the orifice (FR-A-1 370 868).

Cette possibilité de positionnement longitudinal peut être insuffisante car il arrive que l'orifice ne soit pas exactement dans l'axe de la citerne. En effet, à la longue celle-ci peut se trouver désaxée par suite de défauts de fixation sur le châssis ou d'affaissement de la suspension par exemple.This possibility of longitudinal positioning may be insufficient because it sometimes happens that the orifice is not exactly in the axis of the tank. Indeed, in the long run it may be off-center as a result of defects in fixing to the chassis or sagging of the suspension for example.

Pour éviter cet inconvénient, on surveille la tenue des citernes et on élimine celles dont le désaxement dépasse une certaine limite pour les faire réparer. Bien entendu, cette opération est coûteuse et il est intéressant d'augmenter le seuil de tolérance de désaxement pour utiliser les citernes plus longtemps avant réparation.To avoid this drawback, the performance of the tanks is monitored and those whose misalignment exceeds a certain limit are eliminated to have them repaired. Of course, this operation is costly and it is advantageous to increase the offset tolerance threshold to use the tanks longer before repair.

On a déjà proposé, pour remédier au désaxement des orifices, de donner au chariot de support de la conduite une possibilité de déplacement non seulement longitudinal mais également transversal. Il est ainsi possible d'amener la conduite exactement au-dessus du centre de l'orifice.It has already been proposed, to remedy the misalignment of the orifices, to give the support trolley of the pipe a possibility of movement not only longitudinal but also transverse. It is thus possible to bring the pipe exactly above the center of the orifice.

Cependant, on a constaté que le désaxement de la citerne se traduisait le plus souvent par une inclinaison de celle-ci de telle sorte que l'axe de l'orifice n'est plus vertical. C'est pourquoi il peut ne pas être suffisant de déplacer transversalement la conduite pour l'amener au-dessus de l'orifice. En effet, du fait de l'inclinaison de l'axe par rapport à sa verticale, la section horizontale de l'orifice est diminuée dans le sens transversal, d'autant plus que le dôme d'entrée du wagon comporte une paroi latérale d'une hauteur non négligeable. De ce fait, s'il n'existe pas un jeu important entre la conduite et les parois latérales de l'orifice, la conduite ne peut pénétrer dans l'orifice même si elle a été déportée transversalement. On est donc amené à diminuer encore la tolérance sur le désaxement des orifices et, lorsque c'est en descendant la conduite dans l'orifice que l'on s'aperçoit qu'elle ne peut y pénétrer, on est obligé de détacher le wagon pour le retirer de la rame, ce qui impose évidemment une gêne considérable et une perte de temps onéreuse.However, it has been found that the misalignment of the tank most often results in an inclination of the latter so that the axis of the orifice is no longer vertical. This is why it may not be sufficient to move the pipe transversely to bring it above the orifice. Indeed, due to the inclination of the axis relative to its vertical, the horizontal section of the orifice is reduced in the transverse direction, all the more since the entry dome of the wagon has a side wall d 'a significant height. Therefore, if there is not a significant clearance between the pipe and the side walls of the orifice, the pipe can not enter the orifice even if it has been offset transversely. We are therefore led to further decrease the tolerance on the misalignment of the orifices and, when it is by lowering the pipe into the orifice that we realize that it cannot penetrate it, we are obliged to detach the wagon to remove it from the train, which obviously imposes considerable discomfort and an expensive waste of time.

L'invention a pour objet des perfectionnements permettant de remédier à ces inconvénients.The invention relates to improvements which make it possible to remedy these drawbacks.

Conformément à l'invention, la conduite est montée rotative, par l'intermédiaire de tourillons, sur le chariot de support autour d'un axe sensiblement parallèle à la direction longitudinale de déplacement et le chariot de support est muni d'un moyen de commande d'une rotation de la conduite autour desdits tourillons déterminant une inclinaison de ladite conduite par rapport à la verticale simultanée et proportionnelle au déplacement transversal de positionnement du chariot pour l'alignement de l'axe longitudinal de la conduite avec l'axe de l'orifice.According to the invention, the pipe is rotatably mounted, via pins, on the support carriage around an axis substantially parallel to the longitudinal direction of movement and the support carriage is provided with a control means of a rotation of the pipe around said trunnions determining an inclination of said pipe with respect to the vertical simultaneous and proportional to the transverse displacement movement of the carriage for the alignment of the longitudinal axis of the pipe with the axis of the orifice.

Dans un mode de réalisation préférentiel de l'invention, le moyen de commande de l'inclinaison de la conduite comprend un levier calé sur l'un des tourillons, parallèle à l'axe longitudinal de la conduite et dont l'extrémité se trouve au contact d'une came ménagée sur la charpente parallèlement à la direction transversale de déplacement du chariot, ladite came se composant, de part et d'autre d'une position centrale pour laquelle la conduite et le levier sont verticaux, de deux rampes d'appui de l'extrémité du levier déterminant l'inclinaison du levier et de la conduite lorsque le chariot s'écarte transversalement de ladite position centrale.In a preferred embodiment of the invention, the means for controlling the inclination of the pipe comprises a lever fixed on one of the pins, parallel to the longitudinal axis of the pipe and the end of which is at contact of a cam formed on the frame parallel to the transverse direction of movement of the carriage, said cam consisting, on either side of a central position for which the pipe and the lever are vertical, of two ramps support of the end of the lever determining the inclination of the lever and of the pipe when the carriage deviates transversely from said central position.

L'invention va maintenant être décrite, en se référant à un mode de réalisation particulier, donné à titre d'exemple et représenté sur les dessins annexés.

  • La figure 1 est une vue schématique en perspective d'une installation de remplissage selon l'invention.
  • La figure 2 est une vue schématique, en élévation de l'invention, en coupe transversale par rapport à l'axe de la voie.
  • La figure 3 est une vue partielle en coupe longitudinale, selon III-III, figure 2.
  • La figure 4 est une vue d'une conduite en position inclinée dans un mode de réalisation plus perfectionné.
  • La figure 5 est une vue de détail du levier d'inclinaison dans le mode de réalisation perfectionné de la figure 4.
The invention will now be described, with reference to a particular embodiment, given by way of example and shown in the accompanying drawings.
  • Figure 1 is a schematic perspective view of a filling installation according to the invention.
  • Figure 2 is a schematic view, in elevation of the invention, in cross section relative to the axis of the track.
  • FIG. 3 is a partial view in longitudinal section, along line III-III, FIG. 2.
  • FIG. 4 is a view of a pipe in an inclined position in a more improved embodiment.
  • FIG. 5 is a detailed view of the tilt lever in the improved embodiment of FIG. 4.

Sur la figure 1, on a représenté schématiquement et en perspective une installation de chargement de citerne 1 susceptibles de circuler l'une derrière l'autre sur une voie de circulation 11. L'installation est montée sur une charpente 2 composée par exemple de portiques 20 surplombant la voie de circulation 11 et reliée par des poutres longitudinales 21 le long desquelles peut se déplacer la conduite de remplissage 3.In Figure 1, there is shown schematically and in perspective a tank loading installation 1 capable of running one behind the other on a traffic lane 11. The installation is mounted on a frame 2 composed for example of gantry cranes 20 overhanging the traffic lane 11 and connected by longitudinal beams 21 along which the filling pipe 3 can move.

Comme on l'a indiqué plus haut, celle-ci peut se déplacer par rapport à la charpente dans la direction longitudinale de la voie 11 et dans la direction transversale de façon à pouvoir être positionnée avec précision, par un opérateur, au-dessus de l'orifice de chargement 12 de la citerne 1. A cet effet, la conduite 3 est portée par un chariot 4 qui peut se déplacer le long d'une poutre transversale 5 supportée elle-même à ses extrémités par des sommiers 50 déplaçables longitudinalement le long de chemins de roulement ménagés sur les poutres 21.As indicated above, it can move relative to the frame in the longitudinal direction of track 11 and in the transverse direction so that it can be positioned precisely, by an operator, above the loading orifice 12 of the tank 1. For this purpose, the pipe 3 is carried by a carriage 4 which can move along a transverse beam 5 which is itself supported at its ends by bed bases 50 movable longitudinally along raceways formed on the beams 21.

Le déplacement du chariot 4 sur la poutre 5 et de cette dernière sur les poutres 21 s'effectue au moyen d'organes de support à galets 40 tout à fait classiques qui n'ont pas été représentés en détail.The movement of the carriage 4 on the beam 5 and of the latter on the beams 21 takes place by means of completely conventional roller support members 40 which have not been shown in detail.

Selon la caractéristique essentielle de l'invention, la conduite 3 est montée pivotante sur le chariot 4 autour de tourillons 6 qui déterminent un axe de pivotement 60 parallèle à l'axe longitudinal de la voie 11. Les tourillons 6 s'appuient eux-mêmes, par l'intermédiaire de paliers, sur des chaises de support 41 ménagées sur le chariot 4.According to the essential characteristic of the invention, the pipe 3 is pivotally mounted on the carriage 4 around pins 6 which determine a pivot axis 60 parallel to the longitudinal axis of the track 11. The pins 6 support themselves , by means of bearings, on support chairs 41 formed on the carriage 4.

La conduite 3 peut être de tout type connu permettant de la faire descendre à l'intérieur de la citerne 1 par coulissement le long de son axe 30. D'autre part, elle doit évidemment être reliée à une canalisation 31 d'alimentation en fluide de remplissage de la citerne. Cependant, dans l'invention, il est avantageux d'utiliser un type de conduite connu se composant d'un ou plusieurs tubes montés coulissants de façon télescopique à l'intérieur d'un tube fixe par l'intermédiaire duquel l'ensemble est supporté par le chariot. C'est pourquoi, sur la figure 1, on a représenté le tube fixe 3 sur lequel sont fixés les tourillons de support 6 et le tube mobile 32 susceptible d'être descendu verticalement par tout moyen tel qu'un treuil ou un vérin et qui peut d'ailleurs être constitué de plusieurs éléments télescopiques.The pipe 3 can be of any known type allowing it to be lowered inside the tank 1 by sliding along its axis 30. On the other hand, it must obviously be connected to a pipe 31 for supplying fluid tank filling. However, in the invention, it is advantageous to use a known type of pipe consisting of one or more tubes mounted to slide telescopically inside a fixed tube through which the assembly is supported. by the cart. This is why, in Figure 1, there is shown the fixed tube 3 on which are fixed the support pins 6 and the movable tube 32 capable of being lowered vertically by any means such as a winch or a jack and which can also be made up of several telescopic elements.

Comme l'installation est déplaçable, la canalisation 31 d'alimentation en fluide doit pouvoir suivre les déplacements de la conduite. Ceci peut être obtenu par des moyens classiques. Cependant, selon l'invention, il est particulièrement avantageux que l'un des tourillons soit creux et constitue une tubulure d'entrée du fluide à l'intérieur de la conduite 3, cette tubulure étant reliée à la canalisation 31 d'alimentation en fluide de la conduite par un joint tournant 33 qui constitue le palier de rotation du tourillon.As the installation is movable, the pipe 31 for supplying fluid must be able to follow the movements of the pipe. This can be achieved by conventional means. However, according to the invention, it is particularly advantageous for one of the pins to be hollow and to constitute a fluid inlet pipe inside the pipe 3, this pipe being connected to the fluid supply pipe 31. of the pipe by a rotary joint 33 which constitutes the pivot bearing of the journal.

L'ensemble est représenté plus en détail sur les figures 2 et 3.The assembly is shown in more detail in Figures 2 and 3.

Sur la figure 2, on a représenté schématiquement la citerne 1 montée sur un châssis 10 roulant sur la voie 11.FIG. 2 schematically shows the tank 1 mounted on a chassis 10 rolling on track 11.

Comme on l'a indiqué, il est possible que, à la longue, l'orifice supérieur 12 de la citerne soit désaxé. Ceci provient généralement d'un affaissement de la suspension du châssis 10 ou d'un déplacement de la citerne sur son châssis et, en pratique, on peut assimiler ce déplacement à une rotation d'un angle A autour d'un centre que l'on peut situer approximativement à la hauteur de l'axe de l'essieu 13 du wagon-citerne.As indicated, it is possible that, in the long run, the upper orifice 12 of the tank may be offset. This generally results from a subsidence of the suspension of the chassis 10 or from a displacement of the tank on its chassis and, in practice, this displacement can be likened to a rotation of an angle A around a center that the it can be located approximately at the height of the axis of the axle 13 of the tank car.

Selon l'invention, on commande une rotation de la conduite autour de l'axe des tourillons 60 pour lui donner une inclinaison proportionnelle à son déplacement transversal de telle sorte que l'axe 30 de la conduite s'incline suivant la direction 300 passant par le centre 0 de désaxement de la citerne et coïncide ainsi avec l'axe de l'orifice 12, ce qui garantit la bonne pénétration de la conduite dans la citerne.According to the invention, a rotation of the pipe is controlled around the axis of the pins 60 to give it an inclination proportional to its transverse displacement so that the axis 30 of the pipe inclines in the direction 300 passing through the center 0 of offset of the tank and thus coincides with the axis of the orifice 12, which guarantees good penetration of the pipe into the tank.

De préférence, les tourillons 6 seront placés de telle sorte que la conduite soit équilibrée par rapport à l'axe 60 des tourillons si bien qu'il suffit d'un effort assez peu important pour commander l'inclinaison de la conduite et la maintenir dans cette position. Cet équilibrage n'est pas très difficile à obtenir étant donné que la partie supérieure du tube 3 supporte souvent une installation de commande de la descente de la conduite, telle qu'un vérin, qui est assez lourde et qui peut équilibrer le poids des conduites télescopiques 32 si la position de l'appui 60 est bien choisie.Preferably, the pins 6 will be placed so that the pipe is balanced with respect to the axis 60 of the pins so that it takes only a relatively small effort to control the inclination of the pipe and keep it in this position. This balancing is not very difficult to obtain since the upper part of the tube 3 often supports an installation for controlling the descent of the pipe, such as a jack, which is quite heavy and which can balance the weight of the pipes. telescopic 32 if the position of the support 60 is well chosen.

Dans le mode de réalisation représenté sur les figures, l'inclinaison de la conduite est commandée par un levier 7 qui est calé sur l'un des tourillons 61 de la conduite et qui s'étend vers le bas parallèlement à l'axe 30. L'extrémité du levier 7 est au contact d'une came 70 fixée sur la poutre transversale 5 et qui se compose de deux rampes 75, 76 s'étendant parallèlement à la direction transversale de déplacement de part et d'autre de la position centrale pour laquelle la conduite est verticale. De préférence, un galet 71 est placé à l'extrémité du levier 7 pour rouler sur les rampes 75, 76. L'inclinaison de celles-ci peut être calculée assez facilement de façon que, comme on l'a représenté sur la figure, l'axe 30 parallèle au levier 7 passe par le point 0 lorsque l'axe 60 des tourillons est déplacé de part et d'autre de la position centràle.In the embodiment shown in the figures, the inclination of the pipe is controlled by a lever 7 which is wedged on one of the pins 61 of the pipe and which extends downwards parallel to the axis 30. The end of the lever 7 is in contact with a cam 70 fixed on the transverse beam 5 and which consists of two ramps 75, 76 extending parallel to the transverse direction of movement on either side of the central position for which the pipe is vertical. Preferably, a roller 71 is placed at the end of the lever 7 to roll on the ramps 75, 76. The inclination of these can be calculated quite easily so that, as shown in the figure, the axis 30 parallel to the lever 7 passes through the point 0 when the axis 60 of the pins is moved on either side of the central position.

Sur la figure 3, on a représenté la poutre transversale 5 et le chariot 4 muni des deux chaises 41 de support des tourillons. L'un des tourillons, 61, s'appuie sur la chaise 41 correspondante par l'intermédiaire d'un palier 62. En revanche, l'autre tourillon 63 est un cylindre creux qui constitue une tubulure d'arrivée du fluide à l'intérieur de la conduite 3 raccordée à la canalisation 31 par un joint tournant 33 qui constitue le palier d'appui sur la chaise correspondante 41.In Figure 3, there is shown the transverse beam 5 and the carriage 4 provided with two chairs 41 for supporting the pins. One of the journals, 61, is supported on the corresponding chair 41 by means of a bearing 62. On the other hand, the other journal 63 is a hollow cylinder which constitutes a pipe for the arrival of the fluid at the inside of the pipe 3 connected to the pipe 31 by a rotating joint 33 which constitutes the bearing on the corresponding chair 41.

Bien entendu, c'est par une étude statistique des désaxements transversaux des citernes que l'on pourra déterminer la position du point 0. S'il s'avérait que, selon le désaxement, l'axe de l'orifice 12 ne passe pas par un point unique, il serait possible, par une étude 'statistique, de déterminer l'inclinaison A de l'axe de l'orifice en fonction de l'importance du décalage transversal et de donner empiriquement à la came 70 la forme voulue pour que le déplacement transversal du chariot détermine, au moyen du levier, l'inclinaison recherchée de la conduite.Of course, it is by a statistical study of the transverse misalignments of the tanks that the position of point 0 can be determined. If it turns out that, according to the misalignment, the axis of the orifice 12 does not pass by a single point, it would be possible, by a statistical study, to determine the inclination A of the axis of the orifice as a function of the importance of the transverse offset and to empirically give the cam 70 the desired shape for that the transverse displacement of the carriage determines, by means of the lever, the desired inclination of the pipe.

Bien entendu, d'autres moyens équivalents pourraient être utilisés pour incliner la conduite en fonction de son déplacement transversal. C'est ainsi que l'inclinaison de la conduite pourrait être commandée par un vérin rotatif, en pratique un simple moteur hydraulique, asservi au déplacement transversal de l'axe des tourillons suivant une loi choisie de façon que le déplacement transversal mesuré détermine l'inclinaison voulue.Of course, other equivalent means could be used to tilt the pipe as a function of its transverse displacement. Thus the inclination of the pipe could be controlled by a rotary actuator, in practice a simple hydraulic motor, controlled by the transverse displacement of the axis of the trunnions according to a law chosen so that the measured transverse displacement determines the desired tilt.

Cependant, malgré les précautions prises, il est possible que l'on ne donne pas immédiatement à la conduite l'inclinaison voulue pour qu'elle pénètre sans difficulté dans l'orifice. Ce peut être d'ailleurs le cas si l'opérateur qui commande le positionnement de la conduite n'apprécie pas suffisamment bien le déplacement transversal qu'il doit donner au chariot. C'est pourquoi, dans un mode de réalisation plus perfectionné, l'installation comprend un dispositif de compensation automatique des erreurs d'inclinaison qui permet, après un premier essai où on a constaté que l'extrémité de la conduite ne pénétrait pas directement dans l'orifice, de détecter l'effort latéral provoqué par l'appui de l'extrémité de la conduite sur le bord de l'orifice et par un système d'asservissement, de transformer cet effort d'appui en un déplacement transversal supplémentaire du chariot modifiant l'inclinaison de la conduite jusqu'à suppression de l'effort d'appui de celle-ci sur le bord de l'orifice.However, despite the precautions taken, it is possible that the pipe is not immediately given the desired inclination so that it penetrates without difficulty into the orifice. This can also be the case if the operator who controls the positioning of the pipe does not appreciate sufficiently the transverse movement which he must give to the carriage. This is why, in a more sophisticated embodiment, the installation includes an automatic tilt error compensation device which, after a first test where it has been found that the end of the pipe does not penetrate directly into the orifice, to detect the lateral force caused by the support of the end of the pipe on the edge of the orifice and by a servo system, to transform this support force into an additional transverse displacement of the carriage modifying the inclination of the pipe until the abutment force on the edge of the orifice is removed.

Un tel dispositif est représenté schématiquement sur les figures 4 et 5.Such a device is shown diagrammatically in FIGS. 4 and 5.

On suppose que l'opérateur, ayant tout d'abord voulu descendre la conduite verticalement, a constaté qu'elle ne pénétrait pas dans l'orifice et a commandé un déplacement transversal du chariot déterminant une inclinaison de la conduite de façon à l'amener dans l'axe de l'orifice. La conduite se trouve alors dans la position inclinée représentée sur la figure-4, son axe étant dirigé suivant la direction 300 et on constate que son extrémité heurte le bord de l'orifice 12. Généralement la conduite est munie à son extrémité d'une crépine de diffusion du fluide 34 qui peut avoir la forme d'une pointe de telle sorte que l'appui de la crépine sur le bord de l'orifice 12 se traduit par un effort latéral F sur l'extrémité de la conduite.It is assumed that the operator, having first wanted to lower the pipe vertically, found that it did not enter the orifice and ordered a transverse movement of the carriage determining an inclination of the pipe so as to bring it in the axis of the orifice. The pipe is then in the inclined position shown in Figure-4, its axis being directed in the direction 300 and it is found that its end strikes the edge of the orifice 12. Generally the pipe is provided at its end with a fluid diffusion strainer 34 which may have the shape of a point so that the support of the strainer on the edge of the orifice 12 results in a lateral force F on the end of the pipe.

Cet effort a tendance à faire tourner la conduite autour des tourillons d'un angle B, son axe prenant la direction 301.This effort tends to rotate the pipe around the pins of an angle B, its axis taking direction 301.

Etant donné que le levier 7 est bloqué, cette rotation de l'axe ne peut se produire que s'il existe une possibilité de glissement angulaire entre la conduite et le levier. Cette possibilité est donnée par un mode de montage plus perfectionné du levier 7 sur le tourillon 61 (représenté sur la figure 5). En effet, le levier 7 est relié au tourillon 61 par une liaison élastique constituée par exemple d'un anneau de caoutchouc 71 dont la face interne est fixée sur le tourillon 61 et dont la face externe est fixée sur la paroi d'un alésage ménagé sur le levier pour le passage du tourillon 61. D'autre part, le levier est centré sur le tourillon de telle sorte que l'anneau 71 peut autoriser un léger glissement angulaire du levier par rapport à la conduite sans désaxement du levier. Toutefois, les caractéristiques de l'anneau 71 sont prévues de façon que ce glissement angulaire ne se produise qu'à partir d'un certain seuil du couple appliqué par le levier sur le tourillon qui est supérieur au couple nécessaire pour incliner la conduite. On a vu que la conduite pouvait être bien équilibrée autour de son axe de tourillon de façon que l'effort d'inclinaison soit assez faible. Il est donc possible d'utiliser un joint élastique qui permette au levier de commander la rotation de la conduite sans glissement angulaire lorsque la conduite est libre. En revanche, si l'extrémité de la conduite prend appui sur l'orifice 12, l'effort latéral qui intervient permet, compte tenu du bras de levier égal à la distance entre l'orifice et l'axe des tourillons, de déformer la liaison élastique 71.Since the lever 7 is blocked, this rotation of the axis can only occur if there is a possibility of angular sliding between the pipe and the lever. This possibility is given by a more sophisticated method of mounting the lever 7 on the pin 61 (shown in FIG. 5). Indeed, the lever 7 is connected to the pin 61 by an elastic connection consisting for example of a rubber ring 71 whose internal face is fixed to the pin 61 and whose external face is fixed to the wall of a bore on the lever for the passage of the pin 61. On the other hand, the lever is centered on the pin so that the ring 71 can allow a slight angular sliding of the lever relative to the pipe without offset of the lever. However, the characteristics of the ring 71 are provided so that this angular sliding does not occur until a certain threshold of the torque applied by the lever on the journal which is greater than the torque necessary to tilt the pipe. We have seen that the pipe could be well balanced around its trunnion axis so that the inclination force is fairly low. It is therefore possible to use an elastic seal which allows the lever to control the rotation of the pipe without angular sliding when the pipe is free. On the other hand, if the end of the pipe bears on the orifice 12, the lateral force which intervenes makes it possible, taking into account the lever arm equal to the distance between the orifice and the axis of the trunnions, to deform the elastic connection 71.

Ce glissement angulaire peut être mesuré par un capteur comportant un corps 72 placé dans un alésage axial du tourillon 61 et calé par rapport à celui-ci et dont le dispositif de mesure est entraîné par un axe 73 rendu solidaire en rotation du levier 7 par une pièce de liaison 74.This angular sliding can be measured by a sensor comprising a body 72 placed in an axial bore of the pin 61 and wedged with respect thereto and the measuring device of which is driven by an axis 73 made integral in rotation with the lever 7 by a connecting piece 74.

Ainsi, lorsque l'appui de la crépine 33 sur le bord de l'orifice 12 produit un effort latéral qui commande le glissement angulaire de la conduite, l'angle de rotation B de l'axe de la conduite par rapport à l'axe du levier 7 est mesuré par le capteur 72 qui peut émettre un signal correspondant en grandeur et en signe à la valeur et au sens de l'angle B. Ce signal est interprété par un système de régulation 43 d'un type classique qui, par des moyens électroniques ou hydrauliques peut déclencher automatiquement le moteur 44 de commande du déplacement du chariot 4 pour commander le déplacement du chariot et par conséquent de l'axe des tourillons dans le sens de l'effort appliqué sur la conduite de façon à annuler cet effort. Ainsi, tant qu'un effort F s'exerce sur l'extrémité 33 de la conduite, le mouvement du chariot 4 déplace l'axe des tourillons dans le sens de cet effort jusqu'à ce que la crépine ne s'appuie plus sur l'orifice 12. Ce déplacement de l'axe des tourillons de la position 600 à la position 602 provoque une inclinaison supplémentaire de la conduite de la direction 300 à la direction 302 pour laquelle la pénétration peut se faire sans appui sur l'orifice 12.Thus, when the support of the strainer 33 on the edge of the orifice 12 produces a lateral force which controls the angular sliding of the pipe, the angle of rotation B of the axis of the pipe relative to the axis of the lever 7 is measured by the sensor 72 which can emit a signal corresponding in size and in sign to the value and the direction of the angle B. This signal is interpreted by a regulation system 43 of a conventional type which, by electronic or hydraulic means can automatically trigger the motor 44 for controlling the movement of the carriage 4 to control the movement of the carriage and therefore of the axis of the trunnions in the direction of the force applied to the pipe so as to cancel this force . Thus, as long as an effort F is exerted on the end 33 of the pipe, the movement of the carriage 4 moves the axis of the journals in the direction of this effort until the strainer no longer rests on the orifice 12. This displacement of the axis of the trunnions from position 600 to position 602 causes an additional inclination of the pipe from the direction 300 to the direction 302 for which penetration can be made without pressing on the orifice 12 .

La commande du déplacement du chariot peut se faire de toute manière connue, par des moyens électroniques ou hydrauliques. Elle peut s'effectuer soit en mode pas à pas, les déplacements étant alors réalisés par unités successives, soit, en mode proportionnel correspondant à la valeur de l'angle d'écart B. Il est en effet possible d'établir une loi empirique de corrélation entre l'angle B dont est écarté l'axe 300 de la conduite inclinée par l'appui sur l'orifice 12 et l'angle C entre l'axe 300 et sa direction théorique 302 en fonction des caractéristiques de la conduite et notamment de la liaison élastique entre le levier et le tourillon.The movement of the carriage can be controlled in any known manner, by electronic or hydraulic means. It can be carried out either in step-by-step mode, the displacements being then carried out in successive units, or, in proportional mode corresponding to the value of the angle of deviation B. It is indeed possible to establish an empirical law of correlation between the angle B from which the axis 300 of the inclined pipe is removed by pressing on the orifice 12 and the angle C between the axis 300 and its theoretical direction 302 as a function of the characteristics of the pipe and in particular of the elastic connection between the lever and the pin.

Bien entendu, l'invention ne se limite pas aux détails du mode de réalisation qui vient d'être décrit. Elle en englobe au contraire toutes les variantes et notamment celles qui n'en différeraient que par l'emploi de moyens équivalents.Of course, the invention is not limited to the details of the embodiment which has just been described. On the contrary, it encompasses all variants, and in particular those which would only differ from it by the use of equivalent means.

Claims (7)

1. A tank-filling equipment including a framework (2) overhanging a track for circulation (11) of the tanks (1) one after another, and a carriage (4) for support of a pipe (3) capable of entering an orifice (12) in the tank (1) by vertical displacement along its axis (30), the said supporting carriage (4) being movable along the framework (2) with respect to the track for circulation (11) along a longitudinal direction and a transverse direction for positioning of the pipe (3) above the orifice (12) in the tank (1) which is to be filled, the pipe (3) being mounted to be able to rotate about at least one journal (6) having its axis (60) substantially parallel with the longitudinal direction of movement, characterized by the fact that the carriage (4) is equipped with a means (7) of control of rotation of the pipe (3) about the said axis (60) of the journals (6) to determine an inclination of the said pipe (3) with respect to the vertical, simultaneously with and proportional to the transverse positioning motion of the carriage (4), for the alignment of the longitudinal axis of the pipe (3) with the axis of the orifice (12).
2. A filling equipment as in Claim 1, characterized by the fact that the means of control of the inclination of the pipe comprises a lever (7) which is keyed onto one of the journals 61 in parallel with the longitudinal axis of the pipe and the end of which is in contact with a cam (70) arranged on the framework (5) in parallel with the transverse direction of movement of the carriage (4), the said cam (70) being composed on opposite sides of a central position in which the pipe (3) and the lever (7) are vertical, of two ramps (75,76) for supporting the end of the lever (7) to determine the inclination of the lever (7) and of the pipe (3) when the carriage (4) moves away transversely from the said central position.
3. A filling equipment as in either of the Claims 1 and 2, characterized by the fact that one of the journals (63) is hollow and forms a lateral pipe stub for the inlet of fluid to the interior of the pipe, the said pipe stub being connected to a circuit for feeding fluid to the pipe through a swivel seal (33) built so as to form the bearing of the said hollow journal (63).
4. A filling equipment as in one of the preceding Claims, characterized by the fact that it comprises a device for automatic compensation of errors of inclination, consisting of a means of detection (72, 73) of a sideways force from the end of the pipe (3) bearing against the edge of the orifice (12), and of a means (44) of control of a transverse movement of the carriage in the direction of the force being applied against the pipe until the said sideways force is eliminated, the said control means (44) being brought under the control of the said means of detection (72, 73).
5. A filling equipment as in Claims 2 and 4, characterized by the fact that the means of detection of the sideways force comprises a means of resilient connection (71) between the lever and the journal 61 of the pipe (3), capable of allowing a rotation of the lever (7) with respect to the journal (61), starting from a threshold of the torque applied against the journal (61) and a means of measurement (72, 73) of the angular shift between the pipe (3) and the lever (7) under the action of the said sideways force.
6. A filling equipment as in Claim 1, characterized by the fact that the means of resilient connection is a rubber ring (71) threaded onto the journal (61), the inner face of which is locked to the journal (61) and the outer face of which is locked to the lever (7).
7. A filling equipment as in Claim 3, characterized by the fact that the means of control of the transverse movement is brought under the control of the means of detection of the sideways force by way of a regulation system (43) which receives information representative of the measured angular shift and transmits to the means of control (44) an order for movement in the direction to cancel out the angular shift.
EP19780400216 1978-12-06 1978-12-06 Apparatus for filling cisterns Expired EP0012144B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19780400216 EP0012144B1 (en) 1978-12-06 1978-12-06 Apparatus for filling cisterns
DE7878400216T DE2861612D1 (en) 1978-12-06 1978-12-06 Apparatus for filling cisterns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19780400216 EP0012144B1 (en) 1978-12-06 1978-12-06 Apparatus for filling cisterns

Publications (2)

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EP0012144A1 EP0012144A1 (en) 1980-06-25
EP0012144B1 true EP0012144B1 (en) 1982-02-03

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Application Number Title Priority Date Filing Date
EP19780400216 Expired EP0012144B1 (en) 1978-12-06 1978-12-06 Apparatus for filling cisterns

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EP (1) EP0012144B1 (en)
DE (1) DE2861612D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526611C2 (en) * 1985-07-25 1995-09-07 Vacmetal Gmbh Device for connecting two staggered lines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345790A (en) * 1971-06-03 1974-02-06 Aldridge D R Apparatus for the filling of containers with a liquid

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DE2861612D1 (en) 1982-03-11
EP0012144A1 (en) 1980-06-25

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