EP2413759A1 - Pneumatic suction device - Google Patents

Pneumatic suction device

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Publication number
EP2413759A1
EP2413759A1 EP10717702A EP10717702A EP2413759A1 EP 2413759 A1 EP2413759 A1 EP 2413759A1 EP 10717702 A EP10717702 A EP 10717702A EP 10717702 A EP10717702 A EP 10717702A EP 2413759 A1 EP2413759 A1 EP 2413759A1
Authority
EP
European Patent Office
Prior art keywords
suction device
nozzle
depression
container
secondary nozzle
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
Application number
EP10717702A
Other languages
German (de)
French (fr)
Other versions
EP2413759B1 (en
Inventor
Patrice Dessuise
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.)
ANUMSA
Original Assignee
ANUMSA
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Filing date
Publication date
Application filed by ANUMSA filed Critical ANUMSA
Publication of EP2413759A1 publication Critical patent/EP2413759A1/en
Application granted granted Critical
Publication of EP2413759B1 publication Critical patent/EP2413759B1/en
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/16—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with suction devices other than rotary fans
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the present invention relates to a pneumatic suction device, that is to say to motorization by air under pressure and venturi effect. It relates more particularly to an improvement relating to a suction device having suction type management means.
  • Pneumatic suction devices are known in particular, in which the expansion of a gas under pressure is used to create a vacuum and, consequently, to generate a suction phenomenon.
  • the pressurized gas is generally compressed air from a factory supply network or a compressor site, for example.
  • the compressed air is sent into a nozzle whose internal shape is adapted to generate, by venturi effect, a vacuum upstream of the smallest section of said nozzle when the compressed air expands downstream of said section.
  • This principle being perfectly known, it will not be described further here.
  • the flow and the depression depend, of course, the shape and dimensions of the nozzle, and in particular of its section. In fact, with a large nozzle, we obtain a large volume of displaced air but at the cost of a relatively low vacuum. On the other hand, with a nozzle of smaller dimensions, there will be less flow but the depression will then be stronger.
  • the technical problem to be solved, by the object of the present invention is to propose a pneumatic suction device comprising a nozzle, called main, through which the expansion of a compressed gas is able to generate by reaction a suction suction and vacuum given, which pneumatic suction device avoids the problems of the state of the art by offering substantially expanded operating capabilities, including the nature and consistency of products to aspirate.
  • the pneumatic suction device further comprises at least one secondary nozzle which can be activated by reaction in substitution for the main nozzle, through which the expansion of the compressed gas is able to generate a suction of a lower flow and a greater depression respectively to the flow rate and to the depression obtained with the main nozzle, and in that each secondary nozzle coaxial with the main nozzle is movably mounted in displacement between a passive position in which the effective expansion of the compressed gas is operated in the main nozzle; and an active position in which the effective expansion of the compressed gas is operated by said secondary nozzle.
  • any mobility can of course be considered.
  • the invention as thus defined has the advantage of being able to vary the essential parameters of the suction depending on the intended application, and in particular the nature and / or consistency of the product to be sucked.
  • the same pneumatic suction device is able to collect efficiently, both substances requiring both a high flow and a limited depression such as, for example, dust or powdery materials, substances that require on the contrary a large depression, even if it has a reduced flow rate, such as, for example, more or less viscous liquids.
  • the invention proposes an improvement which allows in certain cases to prohibit the high pressure to save the corresponding drums, and thus secure the exploitation.
  • the present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
  • Figure 1 shows schematically a pneumatic suction device according to the invention, wherein the main nozzle is active.
  • Figure 2 is a diagram similar to that of Figure 1, but in which it is the secondary nozzle which is active.
  • Figures 3 and 4 illustrate an improvement enabling the device to recognize which container it is connected to and to propose a suitable depression
  • Figures 1 and 2 schematically illustrate a pneumatic suction device (1) operating on compressed air at about 6 to 7 bar, which is provided here via the inlet (2).
  • conventional distribution means (3) which are responsible for regulating the pressure of the air which will be admitted into the pneumatic suction device (1), in particular with a view to controlling the final level of depression for obvious security reasons.
  • the pneumatic suction device (1) is provided with a nozzle (10), called the main nozzle, which is shaped so that the expansion of the compressed air through it can generate, by reaction in the recovery container (50), suction of high flow and limited depression.
  • the pneumatic suction device (1) further comprises a secondary nozzle (20) which is, in turn, shaped in such a way that the expansion of the air compressed through it, it is able to generate, by reaction, suction of low flow but significant depression.
  • This secondary nozzle (20) coaxial with the main nozzle, is, moreover, mounted movably in translation displacement, between a passive position (FIG. 1) where it acts as a detent nozzle, and in which the effective expansion of the compressed air is effected via the main nozzle (10), and an active position ( Figure 7), in which the effective expansion of the compressed air is achieved via said secondary nozzle (20); the compressed air to be compressed being conveyed by the rear nozzle (200) integral in its movements of the secondary nozzle.
  • the main nozzle (10) and the secondary nozzle (20) are coaxial.
  • the secondary nozzle (20) is mounted movably in axial translation with respect to the main nozzle (10). But, of course, other relative positioning and other types of mobility could be well envisaged.
  • the pneumatic suction device (1) further comprises displacement means (30) which are arranged so as to ensure the mobility of the secondary nozzle (20) between its passive position ( Figure 1) and its active position ( Figure 2), perfect and identified and to meet the aeration requirements "venturi".
  • the displacement means (30) comprise here a jack (31) which is able to move the secondary nozzle (20) between its passive position (FIG. 1) and its active position (FIG. 2) in which said secondary nozzle is disposed respectively at a distance and substantially within the main nozzle.
  • a jack (31) which is able to move the secondary nozzle (20) between its passive position (FIG. 1) and its active position (FIG. 2) in which said secondary nozzle is disposed respectively at a distance and substantially within the main nozzle.
  • the jack (31) is composed of a hollow rod (32) which is integral with a piston (33) slidably mounted inside a sealed chamber (34); the distal end of the hollow rod (32) being integral with the secondary nozzle (20).
  • the hollow stem (32) comprises, on the one hand, an inlet opening (35) communicating with supply means (4) in compressed air, and on the other hand, an exhaust opening, constituting a diffusion nozzle (36) opening directly into the secondary nozzle (20).
  • the hollow rod thus advantageously serves as a conduit for bringing the compressed air to the inside of the pneumatic suction device (1) of the "venturi" type.
  • the pneumatic suction device (1) comprises control means (40) which are able to control the bidirectional implementation of the displacement means (30).
  • the control means (40) of the vacuum level in the recovery container comprise a valve which is able to inject air under pressure via the pipe (5) into the active part (37). of the chamber (34) of the cylinder (31), thus translating the piston (33) and consequently the secondary nozzle (20), to generate a greater vacuum, and without injecting compressed air into the active part (37) of the chamber (34) of the cylinder (31), the stable position of the piston (33) being, in fact, the withdrawn position of the cylinder.
  • control means (40) are furthermore capable of determining the level of the depression generated inside the pneumatic suction device (1).
  • the control means (40) communicate with the inside of the pneumatic suction device (1) via a conduit (6).
  • control means (40) are able to automatically control the implementation or displacement means (30) when the depression inside the pneumatic suction device (1) exceeds a threshold value. predetermined or falls below this threshold value after operation at high depression.
  • the pneumatic suction device (1) is configured by default to operate with the main nozzle (10); the secondary nozzle (20) being in passive position.
  • Compressed air from the inlet (2) (arrow fl) is admitted into the system (arrow f2) under the control of the distribution means (3).
  • the compressed air then arrives (arrow f3) via the conduit (4) in the passive part (38) of the chamber (34) of the cylinder (31). It then passes through the inlet opening (35) into the hollow rod (32) which it passes through (arrow f4) until it opens into the secondary nozzle (20) via the nozzle (36), the function of which is neutralized in the rear position.
  • the compressed air is almost injected (arrow f5) in the main nozzle (10) which is advantageously positioned in its axis.
  • the pressurized gas can then fully relax (arrow f6) since the opening (11) of said main nozzle (10) is on the outside.
  • the depression (arrow f7) which is created inside the pneumatic suction device (1) then extends to a recovery container (50) provided with a suction nozzle (51).
  • the suction phenomenon which is then generated at the end of the suction nozzle (51) (arrow fô) can suck material (100) which will accumulate advantageously in the recovery container (50).
  • the control means (40) When, for example, for reasons of closure and difficulty of suction, the vacuum level inside the pneumatic suction device (1) reaches a predetermined threshold value, the control means (40) go into be informed by the presence of the conduit (6). According to Figure 2, the control means (40) will then control the implementation of the displacement means (30) to activate the secondary nozzle (20). For this, compressed air will be injected via the pipe (5) (arrow f9) in the active part (37) of the chamber (34) of the cylinder (31), which will cause the displacement of the piston (33). The secondary nozzle (20) will, therefore, translate towards the main nozzle (10) to its active position.
  • the present invention relates to an improvement which makes it possible to prohibit the passage of suction at the high pressure when this is necessary. This is for example the case of suction made in a barrel type oil (50 ') whose walls are thin.
  • the device comprises means for prohibiting high pressure and more particularly to prohibit the control means (40) constituted by a vacuum intake (63) which will be called a vacuum sensor, and a pressure switch, of determining the level of vacuum generated, and thus controlling the passage of the secondary nozzle (20) to stand in neutralized position to leave only the main nozzle, allowing to obtain a high flow suction but low vacuum.
  • the control means constituted by a vacuum intake (63) which will be called a vacuum sensor, and a pressure switch, of determining the level of vacuum generated, and thus controlling the passage of the secondary nozzle (20) to stand in neutralized position to leave only the main nozzle, allowing to obtain a high flow suction but low vacuum.
  • connection (60) of the suction device (1) to the container (50) is constituted by a female connection portion (61) integral with the suction device (1) intended to cooperate with a connecting male part ( 62a, 62b) secured to the container (50, 50 ').
  • the sensor (63) of the pressure switch is disposed inside the female connection part (61) as illustrated more particularly in FIGS. 3 and 4.
  • the connecting male portion (62a, 62b) comprises a tubular end portion (63a, 63b), whose height (H1, H2) is determined to either allow the detection of the depression or the suppression of this detection.
  • the height (H1) of the tubular end portion of the male connection portion is such that in the connected position as shown in FIG. 3, the vacuum sensor (63) is placed out of the zone of the end tubular part (On the other hand, for the depression to be detected, the height (H2) of the tubular end part of the connecting male part, is such that in the connected position as shown in FIG. II
  • the vacuum sensor is disposed in the region of the end tubular portion. Thus, in this position the sensor is substantially against the wall of the end tubular wall which does not allow it to detect the depression generated by the device.
  • two types of male connection (62a, 62b ') are provided. Namely a first type (62b) for standard containers that are fragile as oil drums (50 '), ( Figure 4), type in which the tubular end portion of the male connection (64b), is of great height (H2) so that the vacuum sensor (63) is disposed in the area occupied by this tubular portion, and a second type (62a) for the stronger containers (50), wherein the tubular end portion (64a) ) of the male connection, is of small height (Hl) so that the vacuum sensor (63) is disposed outside the area occupied by this tubular portion, to allow the detection and act accordingly.
  • the height (H1) of the tubular end portion (64b) of the resistant container connection (50) is less than the height (H2) of the tubular end portion (64a) of the male portion. the connection for fragile standard containers (50 ').
  • the device comprises detection means which enable it to know on which type of container it is connected and to implement the appropriate type of aspiration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A pneumatic suction device (1) intended to be connected to a container (50/50'), comprising a nozzle (10), called the main nozzle, through which the expansion of a compressed gas is able to generate, by reaction, suction having a given flow rate and suction rate, said device comprising a secondary nozzle (20) through which the expansion of compressed gas is able to generate, by reaction, suction having a respectively lower flow rate and greater suction rate than the flow rate and suction rate obtained with the main nozzle, wherein the secondary nozzle is mounted such that it can be displaced axially with respect to the main nozzle, between a passive position, in which the effective expansion of the compressed gas takes place through the main nozzle, and an active position, in which the effective expansion of the compressed gas takes place through said secondary nozzle, wherein the device has control means (40) for determining the suction rate generated and able to control the displacement means (30) of the secondary nozzle, wherein said device includes detection means which enable it to know to which type of container it is connected and to implement the appropriate type of suction, in order to secure operation.

Description

DISPOSITIF D ' ASPIRATION PNEUMATIQUE PNEUMATIC SUCTION DEVICE
La présente invention concerne un dispositif d'aspiration pneumatique, c'est-à-dire à motorisation par air sous pression et effet venturi. Elle concerne plus particulièrement un perfectionnement relatif à un dispositif d'aspiration ayant des moyens de gestion du type d'aspiration.The present invention relates to a pneumatic suction device, that is to say to motorization by air under pressure and venturi effect. It relates more particularly to an improvement relating to a suction device having suction type management means.
Le nettoyage domestique, urbain ou industriel peut être réalisé au moyen de dispositifs d'aspiration plus ou moins complexes. Mais quelle que soit la configuration retenue, il y a essentiellement deux paramètres à maîtriser, à savoir, le débit et la dépression. Ces caractéristiques fonctionnelles doivent être adaptées en fonction de l'application envisagée, et notamment du produit à aspirer.Domestic, urban or industrial cleaning can be achieved by more or less complex suction devices. But whatever the configuration, there are essentially two parameters to control, namely, flow and depression. These functional characteristics must be adapted according to the intended application, and in particular the product to be sucked.
On connaît notamment des dispositifs d'aspiration, dits pneumatiques, dans lesquels on utilise la détente d'un gaz sous pression pour créer du vide et, par conséquent, générer un phénomène d'aspiration. Dans la pratique, le gaz sous pression est généralement de l'air comprimé provenant d'un réseau d'alimentation d'usine ou d'un compresseur de chantier, par exemple.Pneumatic suction devices are known in particular, in which the expansion of a gas under pressure is used to create a vacuum and, consequently, to generate a suction phenomenon. In practice, the pressurized gas is generally compressed air from a factory supply network or a compressor site, for example.
Concrètement, l'air comprimé est envoyé dans une tuyère dont la forme interne est adaptée pour engendrer, par effet venturi, une dépression en amont de la section la plus faible de ladite tuyère lorsque l'air comprimé se détend en aval de ladite section. Ce principe étant parfaitement connu, il ne sera pas décrit davantage ici. On rappellera simplement que le débit et la dépression dépendent, bien entendu, de la forme et des dimensions de la tuyère, et notamment de sa section. Dans les faits, avec une tuyère de grandes dimensions, on obtiendra un volume d'air déplacé important mais au prix d'une dépression relativement faible. A contrario, avec une tuyère de dimensions plus réduites, on aura moins de débit mais la dépression sera alors plus forte.Concretely, the compressed air is sent into a nozzle whose internal shape is adapted to generate, by venturi effect, a vacuum upstream of the smallest section of said nozzle when the compressed air expands downstream of said section. This principle being perfectly known, it will not be described further here. We will call back simply that the flow and the depression depend, of course, the shape and dimensions of the nozzle, and in particular of its section. In fact, with a large nozzle, we obtain a large volume of displaced air but at the cost of a relatively low vacuum. On the other hand, with a nozzle of smaller dimensions, there will be less flow but the depression will then be stronger.
Ce type de dispositif d'aspiration pneumatique présente toutefois l'inconvénient avec une source d'énergie à caractéristiques (pression, débit) stabilisées et constantes, d'avoir des caractéristiques fonctionnelles figées, qui ne constituent qu'un compromis pas forcément bien adapté à l'application envisagée. Ainsi, dans la pratique, on se retrouve souvent avec un dispositif d'aspiration sous capacitaire en dépression et sur capacitaire en débit, ou inversement.This type of pneumatic suction device, however, has the disadvantage with a source of energy characteristics (pressure, flow) stabilized and constant, to have fixed functional characteristics, which are only a compromise not necessarily well suited to the intended application. Thus, in practice, one is often found with a suction device under vacuum and capacity capacity in flow, or vice versa.
Aussi, le problème technique à résoudre, par l'objet de la présente invention, est de proposer un dispositif d'aspiration pneumatique comportant une tuyère, dite principale, à travers laquelle la détente d'un gaz comprimé est apte à générer par réaction une aspiration de débit et de dépression donnée, lequel dispositif d'aspiration pneumatique permet d'éviter les problèmes de l'état de la technique en offrant des capacités d'utilisation sensiblement étendues, notamment au niveau de la nature et de la consistance des produits à aspirer.Also, the technical problem to be solved, by the object of the present invention, is to propose a pneumatic suction device comprising a nozzle, called main, through which the expansion of a compressed gas is able to generate by reaction a suction suction and vacuum given, which pneumatic suction device avoids the problems of the state of the art by offering substantially expanded operating capabilities, including the nature and consistency of products to aspirate.
La solution au problème technique posé consiste, selon la présente invention, en ce que le dispositif d'aspiration pneumatique comporte, en outre, au moins une tuyère secondaire activable par réaction en substitution à la tuyère principale, à travers laquelle la détente du gaz comprimé est apte à générer une aspiration d'un débit inférieur et d'une dépression supérieure respectivement au débit et à la dépression obtenue avec la tuyère principale, et en ce que chaque tuyère secondaire coaxiale à la tuyère principale est montée mobile en déplacement entre une position passive dans laquelle la détente effective du gaz comprimé est opérée dans la tuyère principale et une position active dans laquelle la détente effective du gaz comprimé est opérée par ladite tuyère secondaire.The solution to the technical problem posed consists, according to the present invention, in that the pneumatic suction device further comprises at least one secondary nozzle which can be activated by reaction in substitution for the main nozzle, through which the expansion of the compressed gas is able to generate a suction of a lower flow and a greater depression respectively to the flow rate and to the depression obtained with the main nozzle, and in that each secondary nozzle coaxial with the main nozzle is movably mounted in displacement between a passive position in which the effective expansion of the compressed gas is operated in the main nozzle; and an active position in which the effective expansion of the compressed gas is operated by said secondary nozzle.
On entend par détente effective, celle qui est à l'origine de l'aspiration concrètement générée à l'intérieur du dispositif d'aspiration pneumatique.By effective expansion is meant that which is at the origin of the suction concretely generated inside the pneumatic suction device.
Pour le déplacement de chaque tuyère secondaire, toute mobilité peut bien évidement être envisagée.For the displacement of each secondary nozzle, any mobility can of course be considered.
L'invention telle qu'ainsi définie présente l'avantage de pouvoir faire varier les paramètres essentiels de l'aspiration en fonction de l'application envisagée, et notamment de la nature et/ ou de la consistance du produit à aspirer.The invention as thus defined has the advantage of being able to vary the essential parameters of the suction depending on the intended application, and in particular the nature and / or consistency of the product to be sucked.
Ainsi, un même dispositif d'aspiration pneumatique est en mesure de collecter efficacement, aussi bien des substances réclamant à la fois un fort débit et une dépression limitée comme, par exemple, des poussières ou des matières pulvérulentes, que des substances exigeant au contraire une dépression importante, quitte à avoir un débit réduit, comme/ par exemple, des liquides plus ou moins visqueux.Thus, the same pneumatic suction device is able to collect efficiently, both substances requiring both a high flow and a limited depression such as, for example, dust or powdery materials, substances that require on the contrary a large depression, even if it has a reduced flow rate, such as, for example, more or less viscous liquids.
Toutefois, dans certains cas d'utilisation, même si l'aspiration pourrait être faite avec une grande dépression, il serait nécessaire de ne pas utiliser ce type de dépression. C'est par exemple le cas lorsque le conteneur dans lequel se fait la dépression est un fût de type pétrolier, dont l'épaisseur de la paroi n'est pas suffisante pour n'être pas déformée.However, in some cases of use, even if the aspiration could be done with a great depression, it would be necessary not to use this type of depression. This is for example the case when the container in which is the depression is a barrel type oil, the thickness of the wall is not sufficient to not be deformed.
L'invention propose un perfectionnement qui permet dans certains cas d'interdir la haute pression pour sauvegarder les fûts correspondants, et ainsi sécuriser l'exploitation.The invention proposes an improvement which allows in certain cases to prohibit the high pressure to save the corresponding drums, and thus secure the exploitation.
La présente invention concerne également les caractéristiques qui ressortiront au cours de la description qui va suivre, et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.The present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
Cette description donnée à titre d'exemple non limitatif fera mieux comprendre comment l'invention peut être réalisée, en référence aux dessins annexés sur lesquels :This description, given by way of nonlimiting example, will make it easier to understand how the invention can be realized, with reference to the appended drawings in which:
La figure 1 représente schématiquement un dispositif d'aspiration pneumatique conforme à l'invention, dans lequel la tuyère principale est active.Figure 1 shows schematically a pneumatic suction device according to the invention, wherein the main nozzle is active.
La figure 2 est un schéma similaire à celui de la figure 1, mais dans lequel c'est la tuyère secondaire qui est active.Figure 2 is a diagram similar to that of Figure 1, but in which it is the secondary nozzle which is active.
Les figures 3 et 4 illustrent un perfectionnement permettant au dispositif de reconnaître sur quel conteneur il est connecté et de proposer une dépression appropriéeFigures 3 and 4 illustrate an improvement enabling the device to recognize which container it is connected to and to propose a suitable depression
Pour des raisons de clarté, les mêmes éléments ont été désignés par des références identiques. De même, seuls les éléments essentiels pour la compréhension de l'invention ont été représentés, et ceci, sans respect de l'échelle et de manière schématique.For the sake of clarity, the same elements have been designated by identical references. Similarly, only the essential elements for the understanding of the invention have been shown, and this, without respect for the scale and schematically.
Les figures 1 et 2 illustrent de manière schématique un dispositif d'aspiration pneumatique (1) fonctionnant à base d'air comprimé à environ 6 à 7 bars, qui est fourni ici par l'intermédiaire de l'arrivée (2). On distingue également la présence de moyens de distribution classiques (3) qui sont chargés de réguler la pression de l'air qui va être admis dans le dispositif d'aspiration pneumatique (1), en vue notamment de maîtriser le niveau de dépression finale pour d'évidentes raisons de sécurité. De manière tout aussi classique, le dispositif d'aspiration pneumatique (1) est doté d'une tuyère (10), dite principale, qui est conformée de façon à ce que la détente de l'air comprimé à travers, elle puisse générer, par réaction dans le conteneur de récupération (50), une aspiration de fort débit et de dépression limitée.Figures 1 and 2 schematically illustrate a pneumatic suction device (1) operating on compressed air at about 6 to 7 bar, which is provided here via the inlet (2). We also distinguish the presence of conventional distribution means (3) which are responsible for regulating the pressure of the air which will be admitted into the pneumatic suction device (1), in particular with a view to controlling the final level of depression for obvious security reasons. In a similar way, the pneumatic suction device (1) is provided with a nozzle (10), called the main nozzle, which is shaped so that the expansion of the compressed air through it can generate, by reaction in the recovery container (50), suction of high flow and limited depression.
Conformément à l'objet de la présente invention, le dispositif d'aspiration pneumatique (1) comporte, en outre, une tuyère secondaire (20) qui est, quant à elle, conformée, de manière à ce que la détente de l'air comprimé à travers, elle soit en mesure d'engendrer, par réaction, une aspiration de faible débit mais de dépression importante. Cette tuyère secondaire (20), coaxiale à la tuyère principale, est, par ailleurs, montée mobile en déplacement en translation, entre une position passive (figure 1) où elle a fonction de buse de détente, et dans laquelle la détente effective de l'air comprimé s'effectue via la tuyère principale (10), et une position active (figure 7), dans laquelle la détente effective de l'air comprimé est réalisée par l'intermédiaire de ladite tuyère secondaire (20) ; l'air comprimé à détendre étant acheminé par la buse arrière (200) solidaire dans ses mouvements de la tuyère secondaire. Dans ce mode particulier de réalisation/ choisi uniquement à titre d'exemple, la tuyère principale (10) et la tuyère secondaire (20) sont coaxiales. De plus, la tuyère secondaire (20) est montée mobile en translation axiale par rapport à la tuyère principale (10). Mais, bien entendu, d'autres positionnements relatifs et d'autres types de mobilités pourraient parfaitement être envisagés.According to the object of the present invention, the pneumatic suction device (1) further comprises a secondary nozzle (20) which is, in turn, shaped in such a way that the expansion of the air compressed through it, it is able to generate, by reaction, suction of low flow but significant depression. This secondary nozzle (20), coaxial with the main nozzle, is, moreover, mounted movably in translation displacement, between a passive position (FIG. 1) where it acts as a detent nozzle, and in which the effective expansion of the compressed air is effected via the main nozzle (10), and an active position (Figure 7), in which the effective expansion of the compressed air is achieved via said secondary nozzle (20); the compressed air to be compressed being conveyed by the rear nozzle (200) integral in its movements of the secondary nozzle. In this particular embodiment / chosen solely by way of example, the main nozzle (10) and the secondary nozzle (20) are coaxial. In addition, the secondary nozzle (20) is mounted movably in axial translation with respect to the main nozzle (10). But, of course, other relative positioning and other types of mobility could be well envisaged.
Selon une particularité de l'invention/ le dispositif d'aspiration pneumatique (1) comporte, par ailleurs, des moyens de déplacement (30) qui sont agencés de manière à pouvoir assurer la mobilité de la tuyère secondaire (20) entre sa position passive (figure 1) et sa position active (figure 2), parfaite et repérée et permettant de satisfaire aux exigences aérauliques "venturi".According to a feature of the invention / the pneumatic suction device (1) further comprises displacement means (30) which are arranged so as to ensure the mobility of the secondary nozzle (20) between its passive position (Figure 1) and its active position (Figure 2), perfect and identified and to meet the aeration requirements "venturi".
De manière particulièrement avantageuse, les moyens de déplacement (30) comportent ici un vérin (31) qui est en mesure de déplacer la tuyère secondaire (20) entre sa position passive (figure 1) et sa position active (figure 2) dans lesquelles ladite tuyère secondaire est disposée respectivement à distance et sensiblement à l'intérieur de la tuyère principale. Cette caractéristique permet en quelque sorte de pouvoir neutraliser la tuyère principale (10) de manière réversible, en venant modifier sa section interne par interposition de la tuyère secondaire (20) entre le flux d'air comprimé et ladite tuyère principale (10).Particularly advantageously, the displacement means (30) comprise here a jack (31) which is able to move the secondary nozzle (20) between its passive position (FIG. 1) and its active position (FIG. 2) in which said secondary nozzle is disposed respectively at a distance and substantially within the main nozzle. This feature allows somehow to be able to neutralize the main nozzle (10) in a reversible manner, by modifying its internal section by interposition of the secondary nozzle (20) between the flow of compressed air and said main nozzle (10).
Dans cet exemple de réalisation, le vérin (31) est composé d'une tige creuse (32) qui est solidaire d'un piston (33) monté coulissant à l'intérieur d'une chambre étanche (34) ; l'extrémité distale de la tige creuse (32) étant solidaire de la tuyère secondaire (20). Par ailleurs, la tige creuse (32) comporte, d'une part, une ouverture d'admission (35) communiquant avec des moyens d'alimentation (4) en air comprimé, et d'autre part, une ouverture d'échappement, constituant une buse de diffusion (36) débouchant directement dans la tuyère secondaire (20). La tige creuse sert ainsi avantageusement de conduit pour amener l'air comprimé jusqu'à l'intérieur du dispositif d'aspiration pneumatique (1) de type "venturi".In this embodiment, the jack (31) is composed of a hollow rod (32) which is integral with a piston (33) slidably mounted inside a sealed chamber (34); the distal end of the hollow rod (32) being integral with the secondary nozzle (20). In addition, the hollow stem (32) comprises, on the one hand, an inlet opening (35) communicating with supply means (4) in compressed air, and on the other hand, an exhaust opening, constituting a diffusion nozzle (36) opening directly into the secondary nozzle (20). The hollow rod thus advantageously serves as a conduit for bringing the compressed air to the inside of the pneumatic suction device (1) of the "venturi" type.
Selon une autre particularité , le dispositif d'aspiration pneumatique (1) comporte des moyens de contrôle (40) qui sont aptes à commander la mise en œuvre bidirectionnelle des moyens de déplacement (30). Concrètement, les moyens de contrôle (40) du niveau de vide dans le conteneur de récupération, comportent une valve qui est en mesure d'injecter de l'air sous pression, via la conduite (5), dans la partie active (37) de la chambre (34) du vérin (31), faisant ainsi translater le piston (33) et conséquemment, la tuyère secondaire (20), pour générer une dépression plus importante, et ce, sans injection d'air comprimé dans la partie active (37) de Ia chambre (34) du vérin (31), la position stable du piston (33) étant, de fait, la position retirée du vérin.According to another feature, the pneumatic suction device (1) comprises control means (40) which are able to control the bidirectional implementation of the displacement means (30). Concretely, the control means (40) of the vacuum level in the recovery container comprise a valve which is able to inject air under pressure via the pipe (5) into the active part (37). of the chamber (34) of the cylinder (31), thus translating the piston (33) and consequently the secondary nozzle (20), to generate a greater vacuum, and without injecting compressed air into the active part (37) of the chamber (34) of the cylinder (31), the stable position of the piston (33) being, in fact, the withdrawn position of the cylinder.
Conformément à une autre caractéristique, les moyens de contrôleAccording to another characteristic, the means of control
(40) sont, en outre, aptes à déterminer le niveau de la dépression générée à l'intérieur du dispositif d'aspiration pneumatique (1). Dans la pratique, les moyens de contrôle (40) communiquent avec l'intérieur du dispositif d'aspiration pneumatique (1) par l'intermédiaire d'un conduit (6).(40) are furthermore capable of determining the level of the depression generated inside the pneumatic suction device (1). In practice, the control means (40) communicate with the inside of the pneumatic suction device (1) via a conduit (6).
De manière particulièrement avantageuse, les moyens de contrôle (40) sont aptes à commander automatiquement Ia mise en œuvre ou des moyens de déplacement (30) lorsque Ia dépression à l'intérieur du dispositif d'aspiration pneumatique (1) dépasse une valeur seuil prédéterminée ou retombe en deçà de cette valeur seuil après fonctionnement à haute dépression.Particularly advantageously, the control means (40) are able to automatically control the implementation or displacement means (30) when the depression inside the pneumatic suction device (1) exceeds a threshold value. predetermined or falls below this threshold value after operation at high depression.
Ainsi qu'on peut le voir sur la figure 1, dans la pratique, le dispositif d'aspiration pneumatique (1) est configuré par défaut pour fonctionner avec la tuyère principale (10) ; la tuyère secondaire (20) étant en positon passive. L'air comprimé en provenance de l'arrivée (2) (flèche fl) est admis dans le système (flèche f2) sous contrôle des moyens de distribution (3). L'air comprimé arrive ensuite (flèche f3) via le conduit (4) dans la partie passive (38) de la chambre (34) du vérin (31). Il passe alors par l'ouverture d'admission (35) dans la tige creuse (32) qu'il traverse (flèche f4) jusqu'à déboucher dans Ia tuyère secondaire (20) via la buse (36), dont la fonction détente est neutralisée en position arrière. En raison de sa grande vitesse de déplacement, l'air comprimé est quasiment injecté (flèche f5) dans la tuyère principale (10) qui est avantageusement positionnée dans son axe. Une fois arrivé dans la tuyère principale (10), le gaz sous pression peut alors se détendre complètement (flèche f6) puisque l'ouverture (11) de ladite tuyère principale (10) donne sur l'extérieur. La dépression (flèche f7) qui est créée à l'intérieur du dispositif d'aspiration pneumatique (1) s'étend alors à un conteneur de récupération (50) pourvu d'un suceur d'aspiration (51). Le phénomène d'aspiration qui est alors engendré à l'extrémité du suceur d'aspiration (51) (flèche fô) permet d'aspirer de la matière (100) qui va s'accumuler avantageusement dans le conteneur de récupération (50).As can be seen in FIG. 1, in practice, the pneumatic suction device (1) is configured by default to operate with the main nozzle (10); the secondary nozzle (20) being in passive position. Compressed air from the inlet (2) (arrow fl) is admitted into the system (arrow f2) under the control of the distribution means (3). The compressed air then arrives (arrow f3) via the conduit (4) in the passive part (38) of the chamber (34) of the cylinder (31). It then passes through the inlet opening (35) into the hollow rod (32) which it passes through (arrow f4) until it opens into the secondary nozzle (20) via the nozzle (36), the function of which is neutralized in the rear position. Because of its high speed of movement, the compressed air is almost injected (arrow f5) in the main nozzle (10) which is advantageously positioned in its axis. Once arrived in the main nozzle (10), the pressurized gas can then fully relax (arrow f6) since the opening (11) of said main nozzle (10) is on the outside. The depression (arrow f7) which is created inside the pneumatic suction device (1) then extends to a recovery container (50) provided with a suction nozzle (51). The suction phenomenon which is then generated at the end of the suction nozzle (51) (arrow fô) can suck material (100) which will accumulate advantageously in the recovery container (50).
Lorsque, par exemple, pour des raisons d'obturation et de difficulté d'aspiration, le niveau de dépression à l'intérieur du dispositif d'aspiration pneumatique (1) atteint une valeur seuil prédéterminée, les moyens de contrôle (40) vont en être informés grâce à Ia présence du conduit (6). Conformément à la figure 2, les moyens de contrôle (40) vont alors commander la mise en œuvre des moyens de déplacement (30) afin d'activer la tuyère secondaire (20). Pour cela, de Pair comprimé va être injecté via la conduite (5) (flèche f9) dans la partie active (37) de la chambre (34) du vérin (31), ce qui va entraîner le déplacement du piston (33). La tuyère secondaire (20) va, par conséquent, se translater en direction de la tuyère principale (10), jusqu'à sa position active. L'air comprimé, qui circule toujours notamment dans la conduite (4), dans la partie passive (38) de la chambre (34) et dans la tige creuse (32), va alors se détendre au niveau de la tuyère secondaire (20) dont le positionnement rend inopérant la tuyère principale (10). En raison de la configuration interne particulière de la tuyère secondaire (20), la dépression, alors générée est beaucoup plus importante, même si le débit a, lui, diminué. Cela permet avantageusement de poursuivre l'aspiration de manière efficace, à haute dépression, même si la nature rend cette opération, à priori, difficile. Dès que le niveau de dépression dans le conteneur redescend, suite à la désobstruction grâce à la haute dépression, les moyens de contrôle changent d'état et donnent ordre à la tuyère secondaire (20) de reprendre sa position neutralisée initiale pour laisser active seule la tuyère, principale permettant alors l'aspiration à grand débit de reprendre.When, for example, for reasons of closure and difficulty of suction, the vacuum level inside the pneumatic suction device (1) reaches a predetermined threshold value, the control means (40) go into be informed by the presence of the conduit (6). According to Figure 2, the control means (40) will then control the implementation of the displacement means (30) to activate the secondary nozzle (20). For this, compressed air will be injected via the pipe (5) (arrow f9) in the active part (37) of the chamber (34) of the cylinder (31), which will cause the displacement of the piston (33). The secondary nozzle (20) will, therefore, translate towards the main nozzle (10) to its active position. The compressed air, which always circulates in particular in the pipe (4), in the passive part (38) of the chamber (34) and in the hollow rod (32), will then relax at the secondary nozzle (20). ) whose positioning renders inoperative the main nozzle (10). Because of the particular internal configuration of the secondary nozzle (20), the depression, then generated is much larger, even if the flow has, him, decreased. This advantageously allows to continue sucking effectively, high depression, even if the nature makes this operation, a priori, difficult. As soon as the level of depression in the container drops down, following the unclogging due to the high depression, the control means change state and instruct the secondary nozzle (20) to return to its initial neutralized position to leave active only the nozzle, main then allowing high-speed aspiration to resume.
La présente invention concerne un perfectionnement qui permet d'interdire le passage de l'aspiration à la haute pression lorsque cela est rendu nécessaire. C'est par exemple le cas d'aspiration réalisée dans un fût de type pétrolier (50') dont les parois sont de faible épaisseur.The present invention relates to an improvement which makes it possible to prohibit the passage of suction at the high pressure when this is necessary. This is for example the case of suction made in a barrel type oil (50 ') whose walls are thin.
A cet effet Ie dispositif comprend des moyens permettant d'interdire la haute pression et plus particulièrement d'interdire au moyens de commande (40) constitués par une prise de vide (63) que l'on appellera capteur de dépression, et d'un pressostat, de déterminer le niveau de dépression générée, et ainsi commander le passage de la tuyère secondaire (20) de se placer en position neutralisée pour laisser seule la tuyère principale, permettant d'obtenir une aspiration à grand débit mais à faible dépression.For this purpose the device comprises means for prohibiting high pressure and more particularly to prohibit the control means (40) constituted by a vacuum intake (63) which will be called a vacuum sensor, and a pressure switch, of determining the level of vacuum generated, and thus controlling the passage of the secondary nozzle (20) to stand in neutralized position to leave only the main nozzle, allowing to obtain a high flow suction but low vacuum.
Notons, la connexion (60) du dispositif d'aspiration (1) au conteneur (50) est constituée par une partie femelle de connexion (61) solidaire du dispositif d'aspiration (1) destinée à coopérer avec une partie mâle de connexion (62a, 62b) solidaire du conteneur (50, 50').Note, the connection (60) of the suction device (1) to the container (50) is constituted by a female connection portion (61) integral with the suction device (1) intended to cooperate with a connecting male part ( 62a, 62b) secured to the container (50, 50 ').
Afin de permettre la détection de la dépression ou ne pas la détecter, le capteur (63) du pressostat est disposé à l'intérieur de la partie femelle de connexion (61) tel que cela est illustré plus particulièrement aux figures 3 et 4.In order to allow the detection of the depression or not to detect it, the sensor (63) of the pressure switch is disposed inside the female connection part (61) as illustrated more particularly in FIGS. 3 and 4.
Par ailleurs, la partie mâle de connexion (62a, 62b) comprend une partie tubulaire d'extrémité (63a, 63b), dont la hauteur (Hl, H2) est déterminée pour, soit permettre la détection de la dépression soit la suppression de cette détection.Furthermore, the connecting male portion (62a, 62b) comprises a tubular end portion (63a, 63b), whose height (H1, H2) is determined to either allow the detection of the depression or the suppression of this detection.
Ainsi pour permettre la détection de la dépression, la hauteur (Hl) de la partie d'extrémité tubulaire de Ia partie mâle de connexion, est telle qu'en position connectée telle que représenté à la figure 3, le capteur de dépression (63) est disposé hors de la zone de la partie tubulaire d'extrémité (. Par contre pour qu'il n'y ait pas détection de la dépression, la hauteur (H2) de la partie d'extrémité tubulaire de la partie mâle de connexion, est telle qu'en position connectée telle que représenté à la I IThus to enable the detection of the depression, the height (H1) of the tubular end portion of the male connection portion is such that in the connected position as shown in FIG. 3, the vacuum sensor (63) is placed out of the zone of the end tubular part (On the other hand, for the depression to be detected, the height (H2) of the tubular end part of the connecting male part, is such that in the connected position as shown in FIG. II
figure 4, le capteur de dépression est disposé dans la zone de la partie tubulaire d'extrémité. Ainsi, dans cette position Ie capteur est sensiblement contre la paroi de la paroi tubulaire d'extrémité ce qui ne lui permet pas de détecter la dépression générée par le dispositif.4, the vacuum sensor is disposed in the region of the end tubular portion. Thus, in this position the sensor is substantially against the wall of the end tubular wall which does not allow it to detect the depression generated by the device.
En conséquence au dispositif d'aspiration (1) deux types de connexion mâle (62a, 62b') sont prévus. A savoir un premier type (62b) pour les conteneurs standards qui sont fragiles comme les fûts pétroliers (50'), (figure 4), type selon lequel la partie tubulaire d'extrémité de la connexion mâle (64b), est de grande hauteur (H2) afin que le capteur de dépression (63) soit disposé dans Ia zone occupée par cette partie tubulaire, et un deuxième type (62a) pour les conteneurs plus résistants (50), type selon lequel la partie tubulaire d'extrémité (64a) de la connexion mâle, est de petite hauteur (Hl) afin que le capteur de dépression (63) soit disposé hors de la zone occupée par cette partie tubulaire, afin de permettre la détection et agir en conséquence.As a result of the suction device (1) two types of male connection (62a, 62b ') are provided. Namely a first type (62b) for standard containers that are fragile as oil drums (50 '), (Figure 4), type in which the tubular end portion of the male connection (64b), is of great height (H2) so that the vacuum sensor (63) is disposed in the area occupied by this tubular portion, and a second type (62a) for the stronger containers (50), wherein the tubular end portion (64a) ) of the male connection, is of small height (Hl) so that the vacuum sensor (63) is disposed outside the area occupied by this tubular portion, to allow the detection and act accordingly.
On a compris que la hauteur (Hl) de la partie tubulaire d'extrémité (64b) de la connexion pour conteneurs résistants (50) est inférieure à Ia hauteur (H2) de la partie tubulaire d'extrémité (64a) de la partie mâle de la connexion pour conteneur standards fragiles (50').It is understood that the height (H1) of the tubular end portion (64b) of the resistant container connection (50) is less than the height (H2) of the tubular end portion (64a) of the male portion. the connection for fragile standard containers (50 ').
Par ailleurs afin de ne pas permettre de monter sur un conteneur standard fragile (50') une connexion de type permettant la détection de la dépression, le diamètre (Dl) du filetage du montage de cette connexion sur le conteneur est différent du diamètre (D2) du filetage du montage de la connexion destinée aux conteneurs résistants (50). En d'autres termes le dispositif comprend des moyens de détection qui lui permettent de connaître sur quel type de conteneur il est connecté et de mettre en œuvre le type d'aspiration approprié. Furthermore, in order not to make it possible to mount on a fragile standard container (50 ') a connection of a type enabling the detection of the vacuum, the diameter (D1) of the thread of the assembly of this connection on the container is different from the diameter (D2 ) of the mounting thread of the connection for the resistant containers (50). In other words, the device comprises detection means which enable it to know on which type of container it is connected and to implement the appropriate type of aspiration.

Claims

REVENDICATIONS
1. Dispositif d'aspiration pneumatique (1) destiné à être connecté à un conteneur (50), comportant une tuyère (10), dite principale, à travers laquelle Ia détente d'un gaz comprimé est apte à générer par réaction une aspiration de débit et de dépression donnée, ledit dispositif comportant, une tuyère secondaire (20) à travers laquelle la détente du gaz comprimé est apte à générer par réaction une aspiration d'un débit inférieur et d'une dépression supérieure respectivement au débit et à la dépression obtenue avec la tuyère principale (10), tandis que la tuyère secondaire (20) est montée mobile en déplacement axiale par rapport à la tuyère principale (10), entre une position passive, dans laquelle Ia détente effective du gaz comprimé est opérée par la tuyère principale (10), et une position active, dans laquelle la détente effective du gaz comprimé est opérée par ladite tuyère secondaire (20), tandis que le dispositif comporte des moyens de contrôle (40) permettant de déterminer la dépression générée, et apte à commander les moyens de déplacement de la tuyère secondaire, caractérisé en ce que le dispositif comprend des moyens de détection qui lui permettent de connaître sur quel type de conteneur (50, 50') il est connecté et de mettre en œuvre le type d'aspiration approprié, pour sécuriser l'exploitation.1. Pneumatic suction device (1) intended to be connected to a container (50), comprising a nozzle (10), said main, through which the expansion of a compressed gas is able to generate by reaction a suction of given flow rate and depression, said device comprising, a secondary nozzle (20) through which the expansion of the compressed gas is able to generate by reaction an aspiration of a lower flow and a higher depression respectively to the flow and the depression obtained with the main nozzle (10), while the secondary nozzle (20) is mounted to move axially relative to the main nozzle (10), between a passive position, in which the effective expansion of the compressed gas is operated by the main nozzle (10), and an active position, wherein the effective expansion of the compressed gas is operated by said secondary nozzle (20), while the device comprises means for control (40) for determining the generated depression, and adapted to control the displacement means of the secondary nozzle, characterized in that the device comprises detection means which allow it to know on which type of container (50, 50 ' ) It is connected and implement the appropriate type of suction, to secure the operation.
2. Dispositif d'aspiration (1) selon la revendication 1, caractérisé en ce qu'il comprend des moyens d'interdiction permettant d'interdire la haute pression et plus particulièrement d'interdire aux moyens de commande (40), de déterminer le niveau de dépression générée, et ainsi commander le passage de la tuyère secondaire (20) de se placer en position neutralisée pour laisser seule la tuyère principale, permettant d'obtenir une aspiration à grand débit mais à faible dépression. 2. suction device (1) according to claim 1, characterized in that it comprises means for prohibiting to prohibit the high pressure and more particularly to prohibit the control means (40), to determine the level of depression generated, and thus control the passage of the secondary nozzle (20) to be placed in the neutralized position to leave only the main nozzle, to obtain a suction at high flow but low vacuum.
3. Dispositif d'aspiration (1) selon la revendication précédente, caractérisé en ce que les moyens de contrôle (40) sont constitués par un capteur de dépression, prise de vide (63).3. Suction device (1) according to the preceding claim, characterized in that the control means (40) are constituted by a vacuum sensor, taken vacuum (63).
4. Dispositif d'aspiration (1) selon la revendication précédente, caractérisé en ce que dispositif d'aspiration est connecté au conteneur (50, 50') grâce à une connexion constituée par une partie femelle (61) solidaire du dispositif d'aspiration destinée à venir coopérer avec une partie mâle (62a, 62b) solidaire du conteneur (50, 50'), tandis que les moyens de détection et les moyens d'interdiction sont constitués par le capteur de dépression (63) disposé à l'intérieur de la partie femelle de connexion (61).4. Suction device (1) according to the preceding claim, characterized in that suction device is connected to the container (50, 50 ') through a connection formed by a female portion (61) integral with the suction device intended to cooperate with a male portion (62a, 62b) integral with the container (50, 50 '), while the detection means and the prohibition means are constituted by the vacuum sensor (63) arranged inside of the connecting female part (61).
5. Dispositif d'aspiration (1) selon la revendication précédente, caractérisé en ce qu'afin de permettre la détection de la dépression, la hauteur (Hl) de la partie d'extrémité tubulaire (64a) de la partie mâle de connexion (62a), est telle qu'en position connectée, Ie capteur de dépression (63) est disposé hors de la zone de la partie tubulaire d'extrémité (64a), tandis que pour qu'il n'y ait pas détection de la dépression, la hauteur (H2) de la partie d'extrémité tubulaire (64b) de la partie mâle de connexion (62b), est telle qu'en position connectée, le capteur de dépression (63) est disposé dans la zone de la partie tubulaire d'extrémité.5. Suction device (1) according to the preceding claim, characterized in that to allow the detection of depression, the height (Hl) of the tubular end portion (64a) of the connecting male part ( 62a), is such that in the connected position, the vacuum sensor (63) is disposed outside the region of the end tubular portion (64a), while for lack of detection of the depression the height (H2) of the tubular end portion (64b) of the connecting male portion (62b) is such that in the connected position the vacuum sensor (63) is disposed in the region of the tubular portion end.
6. Dispositif d'aspiration (1) selon la revendication précédente, caractérisé en ce qu'au dispositif d'aspiration (1) deux types de connexion mâle (62a, 62b) sont prévus, à savoir un premier type (62b) pour les conteneur standards fragile (50'), comme les fûts pétroliers, type selon lequel la partie tubulaire d'extrémité (64b) de la connexion mâle (62b), est de grande hauteur (H2) afin que Ie capteur de dépression (63) soit disposé dans la zone occupée par cette partie tubulaire, et une deuxième type (62a) pour les conteneurs plus résistants (50), type selon lequel la partie tubulaire d'extrémité (64a) de la connexion mâle (62b), est de grande hauteur (H2) afin que le capteur de dépression (63) soit disposée hors de la zone occupée par cette partie tubulaire.6. Suction device (1) according to the preceding claim, characterized in that the suction device (1) two types of male connection (62a, 62b) are provided, namely a first type (62b) for the fragile standard container (50 '), such as oil drums, the type in which the end tubular portion (64b) of the male connection (62b), is high (H2) so that the vacuum sensor (63) is disposed in the area occupied by this tubular portion, and a second type (62a) for the more resistant containers (50), type in which the tubular portion of end (64a) of the male connection (62b), is of great height (H2) so that the vacuum sensor (63) is disposed outside the area occupied by this tubular portion.
7. Dispositif d'aspiration (1) selon la revendication précédente, caractérisé en ce qu'afin de ne pas permettre de monter sur un conteneur fragile une connexion de type permettant la détection de la dépression, le diamètre (Dl) du filetage du montage de cette connexion sur le conteneur est différent du diamètre (D2) du filetage du montage de la connexion destinée au conteneur standard.7. Suction device (1) according to the preceding claim, characterized in that in order not to allow mounting on a fragile container a connection of the type allowing the detection of depression, the diameter (Dl) of the mounting thread of this connection on the container is different from the diameter (D2) of the mounting thread of the connection for the standard container.
8. Dispositif d'aspiration pneumatique (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des moyens de déplacement (30) aptes à assurer la mobilité de chaque tuyère secondaire (20) entre sa position passive et sa position active.8. Pneumatic suction device (1) according to any one of the preceding claims, characterized in that it comprises displacement means (30) adapted to ensure the mobility of each secondary nozzle (20) between its passive position and its active position.
9. Dispositif d'aspiration pneumatique (1) selon la revendication 8, caractérisé en ce que les moyens de déplacement (30) comportent un vérin (31) qui est apte à déplacer la tuyère secondaire (20) entre sa position passive et sa position active dans lesquelles ladite tuyère secondaire (20) est disposée respectivement à distance et sensiblement à l'intérieur de la tuyère principale (10).9. Pneumatic suction device (1) according to claim 8, characterized in that the displacement means (30) comprise a jack (31) which is adapted to move the secondary nozzle (20) between its passive position and its position. active in which said secondary nozzle (20) is disposed respectively at a distance and substantially within the main nozzle (10).
10. Dispositif d'aspiration pneumatique (1) selon la revendication 9, caractérisé en ce que le vérin (31) est doté d'une tige creuse (32) comportant, d'une part, une ouverture d'admission (35) communiquant avec des moyens d'alimentation (4) en gaz comprimé/ et d'autre part, une ouverture d'échappement (36) débouchant directement dans la tuyère secondaire (20).10. Pneumatic suction device (1) according to claim 9, characterized in that the cylinder (31) is provided with a hollow rod (32) having, on the one hand, an inlet opening (35) communicating with supply means (4) compressed gas / and secondly, an exhaust opening (36) opening directly into the secondary nozzle (20).
11. Dispositif d'aspiration pneumatique (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comporte des moyens de contrôle (40) aptes à commander dans les deux sens la mise en œuvre des moyens de déplacement (30).11. Pneumatic suction device (1) according to any one of claims 1 to 5, characterized in that it comprises control means (40) adapted to control in both directions the implementation of the displacement means (30).
12. Dispositif d'aspiration pneumatique (1) selon la revendicationPneumatic suction device (1) according to claim
11, caractérisé en ce que les moyens de contrôle (40) sont aptes à commander automatiquement la mise en œuvre des moyens de déplacement (30) lorsque la dépression à l'intérieur du dispositif d'aspiration pneumatique (1) atteint une valeur seuil prédéterminée.11, characterized in that the control means (40) are able to automatically control the implementation of the displacement means (30) when the vacuum inside the pneumatic suction device (1) reaches a predetermined threshold value. .
13. Dispositif d'aspiration pneumatique (1) selon l'une quelconque des revendications précédente, caractérisé en ce que la source d'énergie constituée par le gaz comprimé est de l'air comprimé. 13. Pneumatic suction device (1) according to any one of the preceding claims, characterized in that the energy source constituted by the compressed gas is compressed air.
EP10717702.4A 2009-04-01 2010-03-31 Pneumatic suction device Active EP2413759B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0901605A FR2943931B1 (en) 2009-04-01 2009-04-01 IMPROVEMENT FOR PNEUMATIC SUCTION DEVICE
PCT/FR2010/050612 WO2010112773A1 (en) 2009-04-01 2010-03-31 Pneumatic suction device

Publications (2)

Publication Number Publication Date
EP2413759A1 true EP2413759A1 (en) 2012-02-08
EP2413759B1 EP2413759B1 (en) 2015-10-14

Family

ID=41223538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10717702.4A Active EP2413759B1 (en) 2009-04-01 2010-03-31 Pneumatic suction device

Country Status (3)

Country Link
EP (1) EP2413759B1 (en)
FR (1) FR2943931B1 (en)
WO (1) WO2010112773A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE217473C (en) *
CH157638A (en) * 1931-11-26 1932-10-15 Wildi Jakob Vacuum cleaner with piston pump.
FR843511A (en) * 1938-08-09 1939-07-05 Dust extractor
GB882518A (en) * 1957-02-02 1961-11-15 Norman John Hudson Suction cleaning apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010112773A1 *

Also Published As

Publication number Publication date
WO2010112773A1 (en) 2010-10-07
EP2413759B1 (en) 2015-10-14
FR2943931B1 (en) 2011-04-29
FR2943931A1 (en) 2010-10-08

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