EP3655147A1 - Device for homogenising and sampling a liquid - Google Patents

Device for homogenising and sampling a liquid

Info

Publication number
EP3655147A1
EP3655147A1 EP18762358.2A EP18762358A EP3655147A1 EP 3655147 A1 EP3655147 A1 EP 3655147A1 EP 18762358 A EP18762358 A EP 18762358A EP 3655147 A1 EP3655147 A1 EP 3655147A1
Authority
EP
European Patent Office
Prior art keywords
liquid
sampling
container
homogenization
cooperating
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.)
Pending
Application number
EP18762358.2A
Other languages
German (de)
French (fr)
Inventor
Régis JULLIEN
Bernard JULLIEN
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.)
Jedeau
Original Assignee
Jedeau
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.)
Filing date
Publication date
Application filed by Jedeau filed Critical Jedeau
Publication of EP3655147A1 publication Critical patent/EP3655147A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1152—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with separate elements other than discs fixed on the discs, e.g. vanes fixed on the discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5014—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use movable by human force, e.g. kitchen or table devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/213—Measuring of the properties of the mixtures, e.g. temperature, density or colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2214—Speed during the operation
    • B01F35/22142—Speed of the mixing device during the operation
    • B01F35/221422—Speed of rotation of the mixing axis, stirrer or receptacle during the operation

Definitions

  • the invention relates to the field of devices designed and / or adapted to perform homogenization and sampling, sampling or fractionation of a liquid, in order to ensure that the respective physicochemical compositions of all the fractions produced are substantially identical to each other and identical to the liquid taken, for the purpose of carrying out future physicochemical analyzes of said fractions.
  • Such devices are used for all types of use and preferably but not exclusively, in application with the treatment of effluents, such effluents are industrial, rain or urban, or wastewater.
  • the invention will be described, preferably but not limited to, in the context of such effluent treatment.
  • effluent any liquid fraction or more generally any waste product rejected as a result of a treatment implemented by such an installation.
  • effluents can be released into the environment.
  • samplers or operators are sent to the site in order to proceed with the removal of the effluent in the form of one or more samples or fractions.
  • a sample advantageously comprises a homogenization step, consisting mainly of ensuring that the respective composition of all the fractions produced is substantially identical, and then a step of sampling said fractions or samples.
  • steps must include a number of standard provisions. It may, for example, be required to perform a sampling by means of a valve or any other equivalent element, the diameter of which the internal orifice is substantially equal to or greater than nine millimeters.
  • the homogenization and sampling steps can be carried out in different ways.
  • such homogenization and sampling steps are carried out manually by the sampler or the operator dispatched to the site, by shaking a can or more generally a container, also called a container, in which the liquid to be analyzed is collected.
  • a manual method has a number of disadvantages. Firstly, said method does not make it possible to carry out agitation, and consequently constant homogenization of the liquid during the fractionation of the latter.
  • the sampler or the operator manipulates his can to mix the liquid, then stops the mixture in order to carry out the sampling.
  • manual mixing does not guarantee a reproducibility of the quality of the samples, since not all the fractions in terms of composition are necessarily identical with each other, the quality and / or the composition of the samples being directly dependent on the operator or sampler carrying out said samples.
  • such systems or devices may include one or more "drum-type" type pumps used in one or more containers or containers dedicated to receive the liquid to be sampled.
  • a barrel pump generally comprises a propeller or a turbine arranged to ensure the mixing or mixing of the liquid received in a suction or discharge tube, said tube being designed to allow the removal of the liquid once the homogenized.
  • the propeller or the turbine drives the liquid into the discharge tube along a transmission shaft, such a shaft cooperating at one end with the propeller or the turbine and at its other end, with an actuator arranged to trigger the rotation of the transmission shaft and consequently the stirring of the turbine and / or adjust the rotation speed of the shaft and thus the stirring speed.
  • a transmission shaft such a shaft cooperating at one end with the propeller or the turbine and at its other end, with an actuator arranged to trigger the rotation of the transmission shaft and consequently the stirring of the turbine and / or adjust the rotation speed of the shaft and thus the stirring speed.
  • such barrel pumps Although providing an early solution to the disadvantages imposed by the manual techniques described above, including providing fractionation with continuous stirring, such barrel pumps also have drawbacks.
  • said used drum pumps are not always dimensioned to meet the normative provisions in force.
  • the profile of the propeller or the turbine of such a barrel pump can lead to the formation of vortices during homogenization and thus the introduction of oxygen into the liquid taken, the presence of oxygen impacting the results of certain analyzes, such as COD and / or BOD, by distorting them in particular, since oxygen can cause oxidation of the liquid.
  • a liquid to be fractionated comprises solid particles or filaments
  • the profile The propeller or turbine may also cause retention of such filaments, thereby changing the composition of the samples.
  • the invention makes it possible to meet all or some of the disadvantages raised by the known solutions.
  • an agitator element for a homogenization device and for sampling a liquid comprising a transmission shaft, an agitating head cooperating integrally with said transmission shaft.
  • the stirring head of an agitator element according to the invention comprises a support cooperating integrally with said transmission shaft, and having a lower surface, a substantially long and radial projection arranged to prevent the creation of vortex and solid body retention when the liquid has, said projection cooperating integrally with the lower surface of said support.
  • the stirring head of an agitator element may comprise four long and radial protrusions arranged in mirror pairs, said projections cooperating integrally with the lower surface of said support.
  • the invention provides a device for homogenizing and sampling a liquid, comprising a container comprising an opening for collecting said liquid, means for sampling the liquid cooperating with said container.
  • a homogenization and sampling device also comprises an agitator element according to the invention .
  • the liquid collection means of a homogenization and sampling device may comprise an evacuation valve positioned in the lower part of the container.
  • a homogenization and sampling device may comprise means for adjusting the speed of rotation of the shaft. cooperating with said stirring element.
  • the means for adjusting the speed of rotation of the shaft of a homogenization and sampling device may comprise an inverter coupled to an actuator.
  • a homogenization and sampling device may comprise an autonomous energy source adapted to cooperate with the environment. stirring element and deliver to the latter the electrical energy necessary for its operation.
  • FIGS. 1A and 1B respectively show schematic perspective and sectional views of a preferred but nonlimiting embodiment of a homogenization and liquid sampling device according to the invention
  • FIGS. 1A and 1B respectively illustrate schematic views in perspective and in section of a preferred but non-limiting embodiment of a device for homogenizing and sampling a liquid according to the invention.
  • liquid is understood as any body or fluid in the liquid phase, that is to say, any easily deformable but non-compressible material.
  • Such a liquid is mainly characterized by its composition, said liquid possibly comprising some solid bodies, such as, for example, filaments or other solid particles.
  • such a liquid may consist of an effluent or waste water or waste.
  • a device 1 for homogenization and sampling of a liquid advantageously comprises a container 2, that is to say, in the sense of the invention and throughout the document, any container or container provided for the reception and temporary storage of the liquid to be homogenized and fractionated.
  • a container must thus be able to guarantee the transfer of the liquid within suitable vials to collect the liquid once homogenized and fractionated for future analyzes, while reducing or even eliminating the introduction of any foreign body.
  • a container may consist of a can, that is to say a portable container, can be closed and / or being intended to be closed, already commonly used commercially .
  • the invention can not be limited to this single container arrangement, said container can be adapted according to the liquid it receives.
  • Said container 2 comprises, meanwhile, an opening 3 adapted or arranged to collect said liquid to be sampled.
  • said container 2 consisting of a can, such an opening 3 may advantageously be practiced in the upper part of the container 2, to facilitate the introduction of the liquid into said container 2.
  • the container 2 of the latter can cooperate with gripping means according to a suitable mechanical connection, such as by way of non-limiting example, a connection type embedding.
  • a suitable mechanical connection such as by way of non-limiting example, a connection type embedding.
  • the invention can not, however, be limited to the type of connection providing cooperation between the gripping means and the container 2.
  • Said gripping means can advantageously but not limitatively be arranged on the upper part of said container 2, in the form of one or more handles 4 embossed or protruding .
  • the container 2 may advantageously comprise such gripping means and form with them only one and the same physical entity.
  • the container 2 may, for example, be molded and incorporate gripping means 4.
  • the particular arrangement of the container 2 of a homogenizing and sampling device 1 ensures the maintenance of the latter on a substantially flat surface, when for example, said device is not used.
  • the container 2 of the latter can cooperate with means 5 for holding the device 1 on a flat surface, such as for example the ground, according to a suitable mechanical connection, such as By way of non-limiting example, a connection type embedding.
  • the invention can not, however, be limited to the type of connection ensuring the cooperation between the holding means 5 and the container 2.
  • Said holding means 5 can advantageously but not limitatively be arranged to cooperate with the lower part of said container 2, under the form of one or several feet, one or more beams or irons or other profiles advantageously U.
  • the container 2 may advantageously include such holding means 5 and form with them only one and the same physical entity.
  • the container 2 may, for example, be molded and incorporate holding means 5.
  • a device 1 for homogenization and removal of a liquid according to the invention. the invention also comprises means 7 for sampling the liquid advantageously arranged to ensure the fractionation of the liquid.
  • sampling means 7 advantageously cooperate with the container 2, that is to say that the sampling means and the container 2 are advantageously in fluid communication, thus allowing the passage of the liquid from the container 2 within bottles intended for sampling said liquid.
  • the sampling means 7 and the container 2 of a homogenization and sampling device according to the invention may consist of a single physical entity, said sampling means being included within a walls of the container 2.
  • the means for taking the liquid from a homogenizing and sampling device 1 may comprise a valve manual mechanic positioned in the lower part 2.
  • a valve manual mechanic positioned in the lower part 2.
  • drain or evacuation valve is particularly advantageous, since said valve ensures a gravitational sampling and allows in particular to overcome the normative constraints in matter. climbing speed.
  • a valve is inexpensive and very easily used by a large number of operators or users.
  • such a valve may advantageously consist mainly of a stainless material, such as by example steel or any equivalent metal alloy, and have a section whose diameter is substantially greater than or equal to nine millimeters.
  • the invention can not be limited to this single configuration or to this single arrangement of sampling means 7 and also depends on the liquid to be fractionated. Any means able to perform a similar function and to meet the constraints previously stated could be used in place of such a mechanical valve 7.
  • the invention provides that the container 2 of a device 1 for homogenization and sampling device according to the invention may have an arrangement and / or a specific profile, to facilitate the gravitational sampling of the liquid and thus reduce the residual volume of said liquid within such a container 2.
  • a device for homogenizing and sampling a portable liquid autonomous and satisfying the provisions of the standards for sampling, that is to say allowing fractionation with continuous stirring.
  • such a device 1 for homogenization and sampling of a liquid according to the invention further comprises an agitator element 10.
  • agitator element also known under the name of impeller and / or in the Anglo-Saxon terminology “impeller”, any organ capable of ensuring the homogenization or the mixing of a liquid by creating a movement within such a liquid, for once sampled, all the fractions of said liquid have a substantially identical composition with each other and with the original liquid.
  • the invention relates to an agitator element 10 for device 1 for homogenization and sampling of a liquid.
  • FIGS. 2A to 2C present in particular and schematically views in section and in perspective of a preferred embodiment, but not limiting, of an agitator element 10 for a device for homogenizing and sampling a liquid according to the invention .
  • An agitator element 10 for homogenizing and liquid sampling device 1 advantageously comprises a transmission shaft 10a, a stirring head 10h advantageously cooperating with said transmission shaft 10a according to a suitable mechanical connection, as a non-limiting example, a connection type embedding.
  • a suitable mechanical connection as a non-limiting example, a connection type embedding.
  • the invention can not be limited to the type of connection ensuring cooperation between the transmission shaft and the stirring head.
  • Such a tree of transmission 10a which can also be called an axis, consists of a substantially rectilinear mechanical part for rotating guide said stirring head 10h, transmitting thereto a rotational movement.
  • the transmission shaft 10 may advantageously consist of a cylinder in stainless steel.
  • the invention can not be limited to the material and / or the shape of such a transmission shaft.
  • the stirring head 10h of an agitator element 10 first comprises a solid support 10s advantageously having a lower surface 10s2 and an upper surface 10sl, said support 10s cooperating solidarily in its upper surface 10sl with said transmission shaft 10a, that is to say according to a suitable mechanical connection, such as by way of preferred but non-limiting example, a connection type embedding.
  • a suitable mechanical connection such as by way of preferred but non-limiting example, a connection type embedding.
  • said support 10s may have a preferably circular section.
  • the stirring head 10h of an agitator element 10 comprises a projection 10b cooperating, for its part, integrally with the lower surface 10s2 of said support 10s, that is to say according to a connection adapted mechanical, such as by way of preferred but non-limiting example, a connection type embedding.
  • a connection adapted mechanical such as by way of preferred but non-limiting example, a connection type embedding.
  • Such a mechanical connection may result from an operation of welding, screwing or molding of the projection 10b on the lower surface 10s2 of support 10s.
  • the term "projection" any element forming a relief on said lower surface 10s2.
  • such a projection 10b can have a substantially longiligne and regular configuration, that is to say, when for example the projection describes a substantially elongate relief, section U or V and the thickness e substantially constant of said projection 10b is much smaller, or even negligible, with respect to the length L and the width h of said projection, said thickness e being advantageously but not limitatively included a half-millimeter to five millimeters, and radial that is to say that said projection is advantageously arranged along a radius of the lower surface 10s2 of the support 10s.
  • a projection 10b of an agitator element 10 according to the invention is advantageously arranged to prevent the creation vortex.
  • the creation of vortices has a negative impact, since it leads, as already mentioned, the introduction of oxygen or more generally gas within the liquid, the presence of oxygen impacting the results of some analyzes as for example COD and / or BOD by distorting them in particular, since oxygen can cause oxidation of the liquid.
  • said projection 10b of an agitator element 10 according to the invention is advantageously arranged to prevent the retention of solid bodies. To do this, the protrusion 10b is substantially normal to the lower surface 10s2 of the support 10s.
  • the stirring head 10h of an agitator element 10 may comprise four protrusions 10b that are elongate, regular and radial, arranged in a mirror two by two, said projections 10b cooperating integrally with the lower surface 10s2 of said support 10s.
  • said projections 10h may have substantially identical shapes and dimensions. Such an arrangement is particularly clever, since it allows a better homogenization of the liquid, due to a larger contact area.
  • the invention can not, however, be limited to the number and arrangement of the projections that comprises the stirring head 10h of an agitator element 10 according to the invention.
  • another object of the invention is to provide a homogenizing and sampling device adaptable to a large number of liquids.
  • the homogenization necessary to obtain substantially identical fractions may directly depend on the stirring speed of said liquid.
  • homogenization and sampling being carried out continuously, depending on the volume of liquid remaining in the container 2, it may in some cases be necessary to reduce or increase the stirring speed of the liquid.
  • the stirring speed of the liquid is directly induced and linked to the speed of rotation of the transmission shaft, which guides the rotation of the mixing head 10h.
  • a device 1 for homogenization and sampling compliant to the invention may also comprise means 8 for adjusting the speed of rotation of the transmission shaft 10a.
  • Such adjustment means 8 when they are present in a homogenizing and sampling device 1 according to the invention, advantageously cooperate with the stirring element 10, more particularly with the transmission shaft 10a of Such an agitator element 10.
  • said adjustment means 8 can thus guide in rotation said transmission shaft 10a according to a determined speed.
  • the adjustment means 8 for the speed of rotation of the shaft 10a of a homogenizing and sampling device 1 may comprise a variator, advantageously coupled to an actuator , in the form for example of an electric motor.
  • an actuator in the form for example of an electric motor.
  • such dimmer and actuator can advantageously be contained within a housing designed to be sealed, so that the integrity of the elements contained therein be preserved.
  • such a housing may comprise an on / off switch and a potentiometer cooperating with the actuator by means of communication buses, thus respectively delivering a starting or stopping information of said actuator and a control information of the speed of rotation delivered by the latter, allowing the operator to control the evolution of the stirring element 10.
  • the latter may advantageously comprise an autonomous electrical energy source 6 adapted to cooperate with the actuator of the stirring element 10 and deliver to the latter the electrical energy necessary for its operation, in particular the setting and / or one drive in rotation of the transmission shaft 10a of said stirring element 10.
  • Such electrical energy source may be in the form of one or more rechargeable batteries, for example, capable of delivering sufficient electrical energy to actuate said stirring element 10.
  • the use of one or more batteries makes it possible in particular to provide the energy required for the operation of a device 1 for homogenizing and sampling a liquid according to the invention. No other autonomous power supply means today seems suitable for providing the necessary electrical energy.
  • the invention provides that such a means could be used instead of one or more batteries.
  • a device 10 for homogenizing and sampling a liquid according to the invention can be advantageously connected or communicating, so as to automatically reassemble valuable data needed for sampling and future analysis, thereby facilitating the work of the on-site operator.
  • a device 10 may comprise a communication means, one or more sensors (not shown in the figures) cooperating with said communication means, advantageously wireless or wired, for measuring and collecting a quantity in connection with the liquid collected.
  • Said wireless communication means may consist of a Bluetooth transmitter, wifi or any device making it possible to perform the same function or an equivalent function.
  • Such a sensor may consist, by way of non-limiting examples, of one or more pressure stresses, in the form of, for example, one or more piezometers.
  • the invention can not, however, be limited to this single example of sensors and could, alternatively or in addition, be arranged to deliver any usable size and necessary.
  • the at least one sensor may advantageously produce two main types of information, namely a continuous position measurement or a threshold detection.
  • data or information relating to the liquid taken from the device may be transmitted to a connected electronic object, for example a mobile phone of the smartphone type and / or to a tablet, and / or to a computer having a program of computer for exploiting actual data or information against predetermined data or information.
  • a connected electronic object for example a mobile phone of the smartphone type and / or to a tablet, and / or to a computer having a program of computer for exploiting actual data or information against predetermined data or information.
  • Such an object may include a graphic interface adapted to restore to a user or a supervisor indications as to the liquid taken.
  • the invention has been described in its use for producing homogeneous liquid samples, more particularly from effluents or wastewater, to be

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to a device (1) for homogenising and sampling a liquid, comprising a container (2) that has an opening (3) for collecting said liquid, means (7) for sampling the liquid which cooperate with said container (2), and a stirring element (10). Such a homogenising and sampling device (1) is designed to produce homogeneous liquid samples, more particularly from effluents or wastewater, for future physicochemical analyses.

Description

Dispositif d'homogénéisation et de prélèvement d'un liquide  Device for homogenization and sampling of a liquid
L'invention concerne le domaine de dispositifs conçus et/ou adaptés pour réaliser l'homogénéisation et l'échantillonnage, le prélèvement ou le fractionnement d'un liquide, afin de garantir que les compositions physico-chimiques respectives de toutes les fractions réalisées soient sensiblement identiques entre elles et identiques au liquide prélevé, en vue de la réalisation de futures analyses physico-chimiques desdites fractions. De tels dispositifs sont utilisés pour tous types d'usage et préférentiellement mais non limitativement , en application avec le traitement des effluents, que de tels effluents soient industriels, pluviaux ou urbains, ou encore des eaux usées. Dans la suite du document, l'invention sera décrite, de manière préférée mais non limitative, dans le cadre d'un tel traitement des effluents. The invention relates to the field of devices designed and / or adapted to perform homogenization and sampling, sampling or fractionation of a liquid, in order to ensure that the respective physicochemical compositions of all the fractions produced are substantially identical to each other and identical to the liquid taken, for the purpose of carrying out future physicochemical analyzes of said fractions. Such devices are used for all types of use and preferably but not exclusively, in application with the treatment of effluents, such effluents are industrial, rain or urban, or wastewater. In the rest of the document, the invention will be described, preferably but not limited to, in the context of such effluent treatment.
Avec le développement et la démocratisation des technologies, de nombreuses installations industrielles ont vu le jour. Selon le domaine d'application dans lequel elle évolue, une telle installation industrielle peut produire un ou plusieurs effluents. Au sens de l'invention et dans tout le document, on entend par « effluent » toute fraction liquide ou plus généralement tout produit de déchet rejeté à la suite d'un traitement mis en œuvre par une telle installation. Selon les natures des installations industrielles, à la suite d'un traitement, de tels effluents peuvent être rejetés dans l'environnement. Les normes actuelles en matière de préservation de l'environnement, plus particulièrement anti-pollution, imposent aujourd'hui de procéder à des analyses rigoureuses de tels effluents selon différents critères ou paramètres physico-chimiques imposés par la législation, tels qu'à titre d'exemples non limitatifs, l'analyse de nitrate-nitrite et de phosphate, l'analyse d'ammonium, l'analyse du silicate, l'analyse de la demande chimique en oxygène (également connue sous l'abréviation DCO) , l'analyse de la demande biochimique en oxygène (également connue sous l'abréviation DBO) , la détermination de la concentration en matières en suspension, etc. De telles analyses sont effectuées au moyen de diverses méthodologies et/ou instrumentations et requièrent parfois le concours d'agents chimiques qui peuvent venir souiller l'effluent. Aussi, la fraction d'effluent employée pour exécuter lesdites analyses s'avère généralement être à usage unique. Pour permettre la réalisation de nombreuses analyses, afin notamment de ne pas altérer la qualité de ces dernières par l'introduction de corps ou éléments étrangers, des préleveurs ou opérateurs sont envoyés sur site afin de procéder au prélèvement de l'effluent sous forme d'un ou plusieurs échantillons ou fractions. Un tel prélèvement comprend avantageusement une étape d'homogénéisation, consistant principalement à garantir que la composition respective de toutes les fractions réalisées est sensiblement identique, puis une étape de prélèvement desdites fractions ou échantillons. De telles étapes doivent notamment répondre à un certain nombre de dispositions normalisées. Il peut, par exemple, être requis de réaliser un prélèvement au moyen d'une vanne ou tout autre élément équivalent, dont le diamètre de l'orifice interne est sensiblement égal ou supérieur à neuf millimètres. With the development and democratization of technologies, many industrial facilities have emerged. Depending on the field of application in which it evolves, such an industrial facility can produce one or more effluents. For the purposes of the invention and throughout the document, the term "effluent" any liquid fraction or more generally any waste product rejected as a result of a treatment implemented by such an installation. Depending on the nature of the industrial installations, following a treatment, such effluents can be released into the environment. Current standards for the preservation of the environment, especially anti-pollution, require today to carry out rigorous analyzes of such effluents according to various criteria or physicochemical parameters imposed by the legislation, such as by way of non-limiting examples, the analysis of nitrate-nitrite and phosphate, ammonium analysis, silicate analysis, chemical oxygen demand analysis (also known as COD), biochemical oxygen demand analysis (also known as abbreviation) BOD), the determination of the concentration of suspended solids, etc. Such analyzes are carried out using various methodologies and / or instrumentations and sometimes require the assistance of chemical agents that can contaminate the effluent. Also, the fraction of effluent used to carry out said analyzes generally proves to be disposable. To allow the realization of many analyzes, in particular in order not to alter the quality of the latter by the introduction of foreign bodies or elements, samplers or operators are sent to the site in order to proceed with the removal of the effluent in the form of one or more samples or fractions. Such a sample advantageously comprises a homogenization step, consisting mainly of ensuring that the respective composition of all the fractions produced is substantially identical, and then a step of sampling said fractions or samples. Such steps must include a number of standard provisions. It may, for example, be required to perform a sampling by means of a valve or any other equivalent element, the diameter of which the internal orifice is substantially equal to or greater than nine millimeters.
Actuellement, les étapes d'homogénéisation et de prélèvement peuvent être réalisées de différentes façons. Selon une première possibilité, de telles étapes d'homogénéisation et de prélèvement sont effectuées manuellement par le préleveur ou l'opérateur dépêché sur site, en agitant un bidon ou plus généralement un conteneur, également qualifié de contenant, au sein duquel le liquide à analyser est collecté. Une telle méthode manuelle présente toutefois un grand nombre d'inconvénients. Tout d'abord, ladite méthode ne permet pas de réaliser une agitation, et par voie de conséquence une homogénéisation, constantes du liquide pendant le fractionnement de ce dernier. En effet, le préleveur ou l'opérateur manipule son bidon pour mélanger le liquide, puis stoppe le mélange afin d'effectuer le prélèvement. Ainsi, un mélange manuel ne garantit donc pas une reproductibilité de la qualité des échantillons, puisque toutes les fractions en matière de composition ne sont pas nécessairement identiques entre elles, la qualité et/ou la composition des échantillons dépendant directement de l'opérateur ou du préleveur réalisant lesdits échantillons. Currently, the homogenization and sampling steps can be carried out in different ways. According to a first possibility, such homogenization and sampling steps are carried out manually by the sampler or the operator dispatched to the site, by shaking a can or more generally a container, also called a container, in which the liquid to be analyzed is collected. Such a manual method, however, has a number of disadvantages. Firstly, said method does not make it possible to carry out agitation, and consequently constant homogenization of the liquid during the fractionation of the latter. In fact, the sampler or the operator manipulates his can to mix the liquid, then stops the mixture in order to carry out the sampling. Thus, manual mixing does not guarantee a reproducibility of the quality of the samples, since not all the fractions in terms of composition are necessarily identical with each other, the quality and / or the composition of the samples being directly dependent on the operator or sampler carrying out said samples.
Pour remédier aux différents inconvénients dus aux méthodes qualifiées de manuelles, d'autres systèmes ou encore dispositifs mécaniques ou électromécaniques ont été développés ou employés, afin de proposer notamment une homogénéisation et/ou un prélèvement en continu, voire même dans certains cas, automatisés. A titre d'exemples non limitatifs, de tels systèmes ou dispositifs peuvent comporter une ou plusieurs pompes de type « vide-fûts » employées au sein d'un ou plusieurs contenants ou conteneurs dédiés pour recevoir le liquide à échantillonner. Une telle pompe vide-fût comprend généralement une hélice ou une turbine agencée pour assurer le brassage ou le mélange du liquide accueilli au sein d'un tube d'aspiration ou de refoulement, ledit tube étant conçu pour permettre le prélèvement du liquide une fois celui-ci homogénéisé. L'hélice ou la turbine refoule le liquide dans le tube de refoulement le long d'un arbre de transmission, un tel arbre coopérant en une extrémité avec l'hélice ou la turbine et en son autre extrémité, avec un actionneur agencé pour déclencher la rotation de l'arbre de transmission et par voie de conséquence la mise en agitation de la turbine et/ou ajuster la vitesse de rotation de l'arbre et donc la vitesse d'agitation. To overcome the various disadvantages due to methods described as manual, other systems or mechanical or electromechanical devices have been developed or used, in particular to provide a homogenization and / or sampling in continuous, or even in some cases, automated. By way of non-limiting examples, such systems or devices may include one or more "drum-type" type pumps used in one or more containers or containers dedicated to receive the liquid to be sampled. Such a barrel pump generally comprises a propeller or a turbine arranged to ensure the mixing or mixing of the liquid received in a suction or discharge tube, said tube being designed to allow the removal of the liquid once the homogenized. The propeller or the turbine drives the liquid into the discharge tube along a transmission shaft, such a shaft cooperating at one end with the propeller or the turbine and at its other end, with an actuator arranged to trigger the rotation of the transmission shaft and consequently the stirring of the turbine and / or adjust the rotation speed of the shaft and thus the stirring speed.
Bien qu'apportant un début de solution aux inconvénients qu' imposent les techniques manuelles décrites précédemment, en proposant notamment un fractionnement sous agitation en continu, de telles pompes vide-fûts présentent également des inconvénients. Tout d'abord, lesdites pompes vide-fûts employées ne sont pas toujours dimensionnées pour répondre aux dispositions normatives en vigueur. En outre, le profil de l'hélice ou de la turbine d'une telle pompe vide-fût peut entraîner la formation de vortex lors de l'homogénéisation et ainsi l'introduction d'oxygène au sein du liquide prélevé, la présence d'oxygène impactant les résultats de certaines analyses, comme par exemple la DCO et/ou la DBO, en les faussant notamment, puisque l'oxygène peut causer une oxydation du liquide. Lorsqu'un liquide à fractionner comporte des particules solides ou des filaments, le profil de l'hélice ou de la turbine peut également occasionner une rétention de tels filaments, modifiant alors la composition des échantillons. Although providing an early solution to the disadvantages imposed by the manual techniques described above, including providing fractionation with continuous stirring, such barrel pumps also have drawbacks. First, said used drum pumps are not always dimensioned to meet the normative provisions in force. In addition, the profile of the propeller or the turbine of such a barrel pump can lead to the formation of vortices during homogenization and thus the introduction of oxygen into the liquid taken, the presence of oxygen impacting the results of certain analyzes, such as COD and / or BOD, by distorting them in particular, since oxygen can cause oxidation of the liquid. When a liquid to be fractionated comprises solid particles or filaments, the profile The propeller or turbine may also cause retention of such filaments, thereby changing the composition of the samples.
Afin de faire face à de tels inconvénients, d'autres systèmes ou dispositifs beaucoup plus perfectionnés et le plus souvent automatisés, connus sous le terme générique de « préleveurs », ont également été conçus, afin de répondre notamment aux exigences de certaines normes . Toutefois, de tels préleveurs automatisés s'avèrent être généralement très complexes et relativement lourds à mettre en œuvre, et se révèlent ainsi dans de nombreux cas peu autonomes et/ou inadaptés à des travaux sur de nombreux sites. En outre, de tels préleveurs automatisés présentent généralement des coûts de fabrication et de maintenance relativement importants.  To cope with such drawbacks, other systems or devices much more sophisticated and most often automated, known under the generic term "samplers", have also been designed, in particular to meet the requirements of certain standards. However, such automated samplers are generally very complex and relatively heavy to implement, and thus prove in many cases not very autonomous and / or unsuitable for work on many sites. In addition, such automated samplers generally have relatively high manufacturing and maintenance costs.
L' invention permet de répondre à tout ou partie des inconvénients soulevés par les solutions connues. The invention makes it possible to meet all or some of the disadvantages raised by the known solutions.
Parmi les nombreux avantages apportés par un dispositif selon l'invention, nous pouvons mentionner que celui-ci permet :  Among the many advantages provided by a device according to the invention, we can mention that it allows:
de fractionner un liquide ou un effluent prélevé en l'homogénéisant de façon continue et simultanément à l'opération de fractionnement dans un unique récipient ou conteneur ayant également servi à le collecter ;  fractionating a liquid or a sampled effluent by homogenizing it continuously and simultaneously with the fractionation operation in a single container or container that has also served to collect it;
de ne pas modifier la nature physico-chimique de l' effluent, éventuellement par un apport d'oxygène de l'air lors d'un brassage inadapté, ou par l'ajout d'une pollution extérieure transmise au moyen, par exemple, d'une pièce éventuellement souillée ; de proposer un dispositif tout-en-un portatif, adaptable à de nombreux environnements de différentes natures, à moindre coût en comparaison des solutions actuellement présentes sur le marché. not to modify the physicochemical nature of the effluent, possibly by a supply of oxygen from the air during an inappropriate mixing, or by the addition of an external pollution transmitted by means of, for example, d a potentially soiled room; to provide a portable all-in-one device, adaptable to many environments of different types, at a lower cost compared to current solutions on the market.
A cette fin, il est notamment prévu un élément agitateur pour dispositif d'homogénéisation et de prélèvement d'un liquide, comportant un arbre de transmission, une tête d'agitation coopérant solidairement avec ledit arbre de transmission. Afin d'assurer une homogénéisation optimale et régulière, la tête d'agitation d'un élément agitateur conforme à l'invention comporte un support coopérant solidairement avec ledit arbre de transmission, et présentant une surface inférieure, une saillie sensiblement longiligne et radiale agencée pour prévenir la création de vortex et la rétention de corps solide lorsque le liquide en comporte, ladite saillie coopérant solidairement avec la surface inférieure dudit support. To this end, there is provided in particular an agitator element for a homogenization device and for sampling a liquid, comprising a transmission shaft, an agitating head cooperating integrally with said transmission shaft. In order to ensure an optimal and regular homogenization, the stirring head of an agitator element according to the invention comprises a support cooperating integrally with said transmission shaft, and having a lower surface, a substantially long and radial projection arranged to prevent the creation of vortex and solid body retention when the liquid has, said projection cooperating integrally with the lower surface of said support.
Préférentiellement mais non limitativement , la tête d'agitation d'un élément agitateur conforme à l'invention peut comporter quatre saillies longilignes et radiales disposées en miroir deux à deux, lesdites saillies coopérant solidairement avec la surface inférieure dudit support .  Preferably, but not exclusively, the stirring head of an agitator element according to the invention may comprise four long and radial protrusions arranged in mirror pairs, said projections cooperating integrally with the lower surface of said support.
Selon un deuxième objet, l'invention prévoit un dispositif d'homogénéisation et de prélèvement d'un liquide, comportant un contenant comprenant une ouverture pour collecter ledit liquide, des moyens de prélèvement du liquide coopérant avec ledit contenant. Afin de proposer un dispositif tout-en-un portatif tout en réalisant des échantillons de liquide ou d'effluent en l'homogénéisant de façon continue, un dispositif d'homogénéisation et de prélèvement conforme à l'invention comporte en outre un élément agitateur selon l'invention. According to a second object, the invention provides a device for homogenizing and sampling a liquid, comprising a container comprising an opening for collecting said liquid, means for sampling the liquid cooperating with said container. In order to propose a portable all-in-one device while producing liquid or effluent samples by continuously homogenizing it, a homogenization and sampling device according to the invention also comprises an agitator element according to the invention .
Préférentiellement mais non limitativement , afin de faciliter l'échantillonnage des fractions, les moyens de prélèvement du liquide d'un dispositif d'homogénéisation et de prélèvement conforme à l'invention peuvent comporter une vanne d'évacuation positionnée dans la partie inférieure du contenant.  Preferably, but not exclusively, in order to facilitate the sampling of the fractions, the liquid collection means of a homogenization and sampling device according to the invention may comprise an evacuation valve positioned in the lower part of the container.
En variante ou en complément, pour ajuster l'homogénéisation et ainsi s'adapter à une multitude de liquides, un dispositif d'homogénéisation et de prélèvement conforme à l'invention peut comporter des moyens de réglage de la vitesse de rotation de l'arbre coopérant avec ledit élément agitateur.  Alternatively or additionally, to adjust the homogenization and thus adapt to a multitude of liquids, a homogenization and sampling device according to the invention may comprise means for adjusting the speed of rotation of the shaft. cooperating with said stirring element.
De manière avantageuse mais non limitative, les moyens de réglage de la vitesse de rotation de l'arbre d'un dispositif d'homogénéisation et de prélèvement conforme à l'invention peuvent comporter un variateur couplé à un actionneur .  Advantageously, but not limitatively, the means for adjusting the speed of rotation of the shaft of a homogenization and sampling device according to the invention may comprise an inverter coupled to an actuator.
Afin d'être utilisable sur tout site, quel que soit l'environnement ou quelles que soient les conditions de prélèvement, un dispositif d'homogénéisation et de prélèvement conforme à l'invention peut comporter une source d'énergie autonome adaptée pour coopérer avec l'élément agitateur et délivrer à ce dernier l'énergie électrique nécessaire à son fonctionnement.  In order to be usable on any site, whatever the environment or whatever the sampling conditions, a homogenization and sampling device according to the invention may comprise an autonomous energy source adapted to cooperate with the environment. stirring element and deliver to the latter the electrical energy necessary for its operation.
D'autres caractéristiques et avantages apparaîtront plus clairement à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent parmi lesquelles : Other features and advantages will appear more clearly on reading the description which follows and examining the figures that accompany it, including:
- les figures 1A et 1B illustrent respectivement des vues schématisées en perspective et en coupe d'un mode de réalisation préféré mais non limitatif d'un dispositif d'homogénéisation et de prélèvement d'un liquide conforme à l'invention ;  FIGS. 1A and 1B respectively show schematic perspective and sectional views of a preferred but nonlimiting embodiment of a homogenization and liquid sampling device according to the invention;
- les figures 2A à 2C présentent respectivement des vues schématisées en coupe et en perspective d'un mode de réalisation préféré mais non limitatif d'un élément agitateur pour dispositif d'homogénéisation et de prélèvement d'un liquide conforme à 1 ' invention . Les figures 1A et 1B illustrent respectivement des vues schématisées en perspective et en coupe d'un mode de réalisation préféré mais non limitatif d'un dispositif d'homogénéisation et de prélèvement d'un liquide conforme à l'invention. Au sens de l'invention et dans tout le document, le terme « liquide » est entendu comme tout corps ou fluide en phase liquide, c'est-à-dire toute matière facilement déformable mais non compressible. Un tel liquide est principalement caractérisé par sa composition, ledit liquide pouvant éventuellement comporter quelques corps solides, tels que par exemple des filaments ou autres particules solides. Comme d'ores et déjà mentionné, dans le cadre de l'application préférée mais non limitation en lien avec l'invention, un tel liquide peut consister en un effluent ou encore une eau usée ou résiduaire.  - Figures 2A to 2C respectively show schematic views in section and in perspective of a preferred embodiment but not limited to an agitator element for homogenizing device and sampling a liquid according to one invention. FIGS. 1A and 1B respectively illustrate schematic views in perspective and in section of a preferred but non-limiting embodiment of a device for homogenizing and sampling a liquid according to the invention. For the purposes of the invention and throughout the document, the term "liquid" is understood as any body or fluid in the liquid phase, that is to say, any easily deformable but non-compressible material. Such a liquid is mainly characterized by its composition, said liquid possibly comprising some solid bodies, such as, for example, filaments or other solid particles. As already mentioned, in the context of the preferred application but not limited to the invention, such a liquid may consist of an effluent or waste water or waste.
Un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention comporte avantageusement un contenant 2, c'est-à-dire, au sens de l'invention et dans tout le document, tout récipient ou conteneur prévu pour l'accueil et le stockage temporaire du liquide à homogénéiser et à fractionner. Un tel contenant doit ainsi être apte à garantir le transfert du liquide au sein de flacons adaptés pour recueillir le liquide une fois homogénéisé et fractionné en vue d'analyses futures, tout en réduisant, voire supprimant l'introduction de tout corps étranger. A titre d'exemple non limitatif, un tel contenant peut consister en un bidon, c'est-à-dire un récipient portatif, pouvant être fermé et/ou étant destiné à être clos, d'ores et déjà couramment employé dans le commerce. Toutefois, l'invention ne saurait être limitée à ce seul agencement de contenant, ledit contenant pouvant être adapté en fonction du liquide qu'il reçoit. Ledit contenant 2 comprend, quant à lui, une ouverture 3 adaptée ou agencée pour collecter ledit liquide à échantillonner. Selon l'exemple de réalisation non limitatif d'un dispositif d'homogénéisation et de prélèvement 1 conforme à l'invention décrit en lien avec les figures 1A et 1B, ledit contenant 2 consistant en un bidon, une telle ouverture 3 peut être avantageusement pratiquée dans la partie supérieure du contenant 2, afin de faciliter l'introduction du liquide au sein dudit contenant 2. A device 1 for homogenization and sampling of a liquid according to the invention advantageously comprises a container 2, that is to say, in the sense of the invention and throughout the document, any container or container provided for the reception and temporary storage of the liquid to be homogenized and fractionated. Such a container must thus be able to guarantee the transfer of the liquid within suitable vials to collect the liquid once homogenized and fractionated for future analyzes, while reducing or even eliminating the introduction of any foreign body. By way of non-limiting example, such a container may consist of a can, that is to say a portable container, can be closed and / or being intended to be closed, already commonly used commercially . However, the invention can not be limited to this single container arrangement, said container can be adapted according to the liquid it receives. Said container 2 comprises, meanwhile, an opening 3 adapted or arranged to collect said liquid to be sampled. According to the nonlimiting exemplary embodiment of a homogenization and sampling device 1 according to the invention described with reference to FIGS. 1A and 1B, said container 2 consisting of a can, such an opening 3 may advantageously be practiced in the upper part of the container 2, to facilitate the introduction of the liquid into said container 2.
En variante ou en complément, afin de permettre à un opérateur ou un utilisateur de mouvoir et/ou de transporter très aisément un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention, le contenant 2 de ce dernier peut coopérer avec des moyens de préhension selon une liaison mécanique adaptée, telle qu'à titre d'exemple non limitatif, une liaison de type encastrement. L'invention ne saurait toutefois être limitée au type de liaison assurant la coopération entre les moyens de préhension et le contenant 2. Lesdits moyens de préhension peuvent avantageusement mais non limitativement être agencés sur la partie supérieure dudit contenant 2, sous la forme d'une ou plusieurs poignées 4 embossées ou saillantes. Eventuellement, en variante, selon un mode de réalisation non limitatif décrit en lien avec les figures 1A et 1B, le contenant 2 peut avantageusement comprendre de tels moyens de préhension et ne former avec eux qu'une seule et même entité physique. Dans ce cas, le contenant 2 peut, par exemple, être moulé et incorporer des moyens de préhension 4. Alternatively or additionally, in order to allow an operator or a user to move and / or very easily transport a device 1 for homogenization and sampling a liquid according to the invention, the container 2 of the latter can cooperate with gripping means according to a suitable mechanical connection, such as by way of non-limiting example, a connection type embedding. The invention can not, however, be limited to the type of connection providing cooperation between the gripping means and the container 2. Said gripping means can advantageously but not limitatively be arranged on the upper part of said container 2, in the form of one or more handles 4 embossed or protruding . Optionally, alternatively, according to a non-limiting embodiment described with reference to FIGS. 1A and 1B, the container 2 may advantageously comprise such gripping means and form with them only one and the same physical entity. In this case, the container 2 may, for example, be molded and incorporate gripping means 4.
En principe, l'agencement particulier du contenant 2 d'un dispositif 1 d'homogénéisation et de prélèvement garantit le maintien de ce dernier sur une surface sensiblement plane, lorsque par exemple, ledit dispositif n'est pas employé. En variante ou en complément, toujours selon un mode de réalisation non limitatif décrit en lien avec les figures 1A et 1B, afin de permettre à un opérateur ou un utilisateur de disposer et/ou de maintenir au sol très aisément un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention, le contenant 2 de ce dernier peut coopérer avec des moyens de maintien 5 du dispositif 1 sur une surface plane, telle que par exemple le sol, selon une liaison mécanique adaptée, telle qu'à titre d'exemple non limitatif, une liaison de type encastrement. L'invention ne saurait toutefois être limitée au type de liaison assurant la coopération entre les moyens de maintien 5 et le contenant 2. Lesdits moyens de maintien 5 peuvent avantageusement mais non limitativement être agencés pour coopérer avec la partie inférieure dudit contenant 2, sous la forme d'un ou plusieurs pieds, d'une ou plusieurs poutrelles ou encore fers ou autres profilés avantageusement en U. Eventuellement, en variante (non représentée sur les figures) , le contenant 2 peut avantageusement comprendre de tels moyens de maintien 5 et ne former avec eux qu'une seule et même entité physique. Dans ce cas, le contenant 2 peut, par exemple, être moulé et incorporer des moyens de maintien 5. Pour permettre un échantillonnage ou fractionnement aisé d'un liquide, un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention comprend également des moyens 7 de prélèvement du liquide avantageusement agencés pour assurer le fractionnement du liquide. De tels moyens de prélèvement 7 coopèrent avantageusement avec le contenant 2, c'est-à-dire que les moyens de prélèvement et le contenant 2 sont avantageusement en communication fluidique, permettant ainsi le passage du liquide du contenant 2 au sein de flacons destinés à l'échantillonnage dudit liquide. Eventuellement, en variante, les moyens de prélèvement 7 et le contenant 2 d'un dispositif d'homogénéisation et de prélèvement conforme à l'invention peuvent consister en une seule et même entité physique, lesdits moyens de prélèvement étant compris au sein d'une des parois du contenant 2. In principle, the particular arrangement of the container 2 of a homogenizing and sampling device 1 ensures the maintenance of the latter on a substantially flat surface, when for example, said device is not used. Alternatively or additionally, still according to a non-limiting embodiment described in connection with Figures 1A and 1B, to allow an operator or a user to have and / or maintain the soil very easily a homogenizing device 1 and taking a liquid according to the invention, the container 2 of the latter can cooperate with means 5 for holding the device 1 on a flat surface, such as for example the ground, according to a suitable mechanical connection, such as By way of non-limiting example, a connection type embedding. The invention can not, however, be limited to the type of connection ensuring the cooperation between the holding means 5 and the container 2. Said holding means 5 can advantageously but not limitatively be arranged to cooperate with the lower part of said container 2, under the form of one or several feet, one or more beams or irons or other profiles advantageously U. Optionally, alternatively (not shown in the figures), the container 2 may advantageously include such holding means 5 and form with them only one and the same physical entity. In this case, the container 2 may, for example, be molded and incorporate holding means 5. To allow easy sampling or fractionation of a liquid, a device 1 for homogenization and removal of a liquid according to the invention. the invention also comprises means 7 for sampling the liquid advantageously arranged to ensure the fractionation of the liquid. Such sampling means 7 advantageously cooperate with the container 2, that is to say that the sampling means and the container 2 are advantageously in fluid communication, thus allowing the passage of the liquid from the container 2 within bottles intended for sampling said liquid. Optionally, alternatively, the sampling means 7 and the container 2 of a homogenization and sampling device according to the invention may consist of a single physical entity, said sampling means being included within a walls of the container 2.
De manière préférée mais non limitative, comme présenté par le mode de réalisation décrit en lien avec les figures 1A et 1B, les moyens de prélèvement du liquide d'un dispositif 1 d'homogénéisation et de prélèvement conforme à l'invention peuvent comporter une vanne mécanique manuelle positionnée dans la partie inférieure du contenant 2. L'emploi d'une telle vanne mécanique, également qualifiée de vanne de vidange ou d'évacuation, s'avère particulièrement avantageux, puisque ladite vanne assure un prélèvement gravitationnel et permet notamment de s'affranchir des contraintes normatives en matière de vitesse ascensionnelle. Par ailleurs, une telle vanne s'avère peu coûteuse et très facilement employable par un grand nombre d'opérateurs ou d'utilisateurs. En variante ou en complément, pour garantir un dispositif 1 d'homogénéisation et de prélèvement conforme à l'invention pérenne et/ou pour répondre aux contraintes normatives actuelles, une telle vanne peut avantageusement être principalement constituée d'un matériau inoxydable, tel que par exemple l'acier ou tout alliage de métaux équivalent, et présenter une section dont le diamètre est sensiblement supérieur ou égal à neuf millimètres. In a preferred but nonlimiting manner, as presented by the embodiment described with reference to FIGS. 1A and 1B, the means for taking the liquid from a homogenizing and sampling device 1 according to the invention may comprise a valve manual mechanic positioned in the lower part 2. The use of such a mechanical valve, also called drain or evacuation valve, is particularly advantageous, since said valve ensures a gravitational sampling and allows in particular to overcome the normative constraints in matter. climbing speed. Moreover, such a valve is inexpensive and very easily used by a large number of operators or users. As a variant or in addition, in order to guarantee a device 1 for homogenization and sampling according to the perennial invention and / or to meet the current normative constraints, such a valve may advantageously consist mainly of a stainless material, such as by example steel or any equivalent metal alloy, and have a section whose diameter is substantially greater than or equal to nine millimeters.
Toutefois, l'invention ne saurait être limitée à cette seule configuration ou à ce seul agencement de moyens de prélèvement 7 et dépend également du liquide à fractionner. Tout moyen apte à assurer une fonction similaire et à répondre aux contraintes précédemment énoncées pourrait être employé en lieu et place d'une telle vanne mécanique 7. En outre, l'invention prévoit que le contenant 2 d'un dispositif 1 d'homogénéisation et de prélèvement conforme à l'invention puisse présenter un agencement et/ou un profil spécifique, afin de faciliter le prélèvement gravitationnel du liquide et ainsi réduire le volume résiduel dudit liquide au sein d'un tel contenant 2. Comme précisé précédemment, l'un des buts de l'invention est de proposer un dispositif d'homogénéisation et de prélèvement d'un liquide portatif autonome et satisfaisant aux dispositions des normes en matière d'échantillonnage, c'est-à-dire permettant un fractionnement sous agitation continue. Pour ce faire, un tel dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention comporte en outre un élément agitateur 10. Au sens de l'invention et dans tout le document, on entend par « élément agitateur », également connu sous la dénomination d' impulseur et/ou sous la terminologie anglo-saxonne « impeller », tout organe apte à assurer l'homogénéisation ou le mélange d'un liquide en créant un mouvement au sein d'un tel liquide, pour qu'une fois échantillonnées, toutes les fractions dudit liquide possèdent une composition sensiblement identique entre elles et avec le liquide d'origine. However, the invention can not be limited to this single configuration or to this single arrangement of sampling means 7 and also depends on the liquid to be fractionated. Any means able to perform a similar function and to meet the constraints previously stated could be used in place of such a mechanical valve 7. In addition, the invention provides that the container 2 of a device 1 for homogenization and sampling device according to the invention may have an arrangement and / or a specific profile, to facilitate the gravitational sampling of the liquid and thus reduce the residual volume of said liquid within such a container 2. As previously stated, one It is an object of the invention to provide a device for homogenizing and sampling a portable liquid. autonomous and satisfying the provisions of the standards for sampling, that is to say allowing fractionation with continuous stirring. To do this, such a device 1 for homogenization and sampling of a liquid according to the invention further comprises an agitator element 10. For the purposes of the invention and throughout the document, the term "agitator element" , also known under the name of impeller and / or in the Anglo-Saxon terminology "impeller", any organ capable of ensuring the homogenization or the mixing of a liquid by creating a movement within such a liquid, for once sampled, all the fractions of said liquid have a substantially identical composition with each other and with the original liquid.
Ainsi, selon un autre objet, l'invention concerne un élément agitateur 10 pour dispositif 1 d'homogénéisation et de prélèvement d'un liquide. Les figures 2A à 2C présentent notamment et respectivement des vues schématisées en coupe et en perspective d'un mode de réalisation préféré mais non limitatif d'un élément agitateur 10 pour dispositif d'homogénéisation et de prélèvement d'un liquide conforme à l'invention.  Thus, according to another object, the invention relates to an agitator element 10 for device 1 for homogenization and sampling of a liquid. FIGS. 2A to 2C present in particular and schematically views in section and in perspective of a preferred embodiment, but not limiting, of an agitator element 10 for a device for homogenizing and sampling a liquid according to the invention .
Un élément agitateur 10 pour dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention comporte avantageusement un arbre de transmission 10a, une tête d'agitation lOh coopérant avantageusement avec ledit arbre de transmission 10a selon une liaison mécanique adaptée, telle qu'à titre d'exemple non limitatif, une liaison de type encastrement. L'invention ne saurait toutefois être limitée au type de liaison assurant la coopération entre l'arbre de transmission et la tête d'agitation. Un tel arbre de transmission 10a, pouvant également être qualifié d'axe, consiste en une pièce mécanique sensiblement rectiligne permettant de guider en rotation ladite tête d' agitation lOh, en transmettant à cette dernière un mouvement de rotation. Préférentiellement mais non limitativement , pour assurer un emploi pérenne d'un élément agitateur 10 conforme à l'invention sans corrosion, tout en facilitant la fabrication d'un tel élément agitateur 10, l'arbre de transmission 10a peut avantageusement consister en un cylindre en acier inoxydable. Toutefois, l'invention ne saurait être limitée au matériau et/ou à la forme d'un tel arbre de transmission. An agitator element 10 for homogenizing and liquid sampling device 1 according to the invention advantageously comprises a transmission shaft 10a, a stirring head 10h advantageously cooperating with said transmission shaft 10a according to a suitable mechanical connection, as a non-limiting example, a connection type embedding. The invention, however, can not be limited to the type of connection ensuring cooperation between the transmission shaft and the stirring head. Such a tree of transmission 10a, which can also be called an axis, consists of a substantially rectilinear mechanical part for rotating guide said stirring head 10h, transmitting thereto a rotational movement. Preferably, but not exclusively, to ensure a permanent use of an agitator element 10 according to the invention without corrosion, while facilitating the manufacture of such an agitator element 10, the transmission shaft 10 may advantageously consist of a cylinder in stainless steel. However, the invention can not be limited to the material and / or the shape of such a transmission shaft.
La tête d'agitation lOh d'un élément agitateur 10 conforme à l'invention comporte tout d'abord un support 10s plein présentant avantageusement une surface inférieure 10s2 et une surface supérieure lOsl, ledit support 10s coopérant solidairement en sa surface supérieure lOsl avec ledit arbre de transmission 10a, c'est-à-dire selon une liaison mécanique adaptée, telle qu'à titre d'exemple préféré mais non limitatif, une liaison de type encastrement. Avantageusement mais non limitativement, selon un mode de réalisation préféré décrit en lien avec les figures 2A à 2C, ledit support 10s peut présenter une section avantageusement circulaire. En outre, la tête d'agitation lOh d'un élément agitateur 10 conforme à l'invention comporte une saillie 10b coopérant, quant à elle, solidairement avec la surface inférieure 10s2 dudit support 10s, c'est-à-dire selon une liaison mécanique adaptée, telle qu'à titre d'exemple préféré mais non limitatif, une liaison de type encastrement. Une telle liaison mécanique peut résulter d'une opération de soudage, de vissage ou de moulage de la saillie 10b sur la surface inférieure 10s2 du support 10s. Au sens de l'invention et dans tout le document, on entend par « saillie », tout élément faisant relief sur ladite surface inférieure 10s2. Conformément à l'invention, une telle saillie 10b peut présenter une configuration sensiblement longiligne et régulière, c'est-à-dire, lorsque par exemple la saillie décrit un relief sensiblement longiligne, de section en U ou en V et que l'épaisseur e sensiblement constante de ladite saillie 10b est très inférieure, voire même négligeable, au regard de la longueur L et de la largeur h de ladite saillie, ladite épaisseur e pouvant être avantageusement mais non limitativement comprise un demi-millimètre à cinq millimètres, et radiale, c'est-à-dire que ladite saillie est avantageusement disposée selon un rayon de la surface inférieure 10s2 du support 10s. Enfin, de par sa configuration, notamment la position de la saillie sous le support 10s, et éventuellement de par le matériau qui la constitue, une telle saillie 10b d'un élément agitateur 10 conforme à l'invention est avantageusement agencée pour prévenir la création de vortex. La création de vortex présente un impact négatif, puisqu'elle entraine, comme d'ores et déjà mentionné, l'introduction d'oxygène ou plus généralement de gaz au sein du liquide, la présence d'oxygène impactant sur les résultats de certaines analyses comme par exemple la DCO et/ou la DBO en les faussant notamment, puisque l'oxygène peut causer une oxydation du liquide. De manière analogue, lorsque le liquide comporte des filaments ou plus généralement des corps solides, ladite saillie 10b d'un élément agitateur 10 conforme à l'invention est avantageusement agencée pour prévenir la rétention de corps solides. Pour ce faire, la saillie 10b est sensiblement normale à la surface inférieure 10s2 du support 10s. The stirring head 10h of an agitator element 10 according to the invention first comprises a solid support 10s advantageously having a lower surface 10s2 and an upper surface 10sl, said support 10s cooperating solidarily in its upper surface 10sl with said transmission shaft 10a, that is to say according to a suitable mechanical connection, such as by way of preferred but non-limiting example, a connection type embedding. Advantageously but not limitatively, according to a preferred embodiment described in connection with Figures 2A to 2C, said support 10s may have a preferably circular section. In addition, the stirring head 10h of an agitator element 10 according to the invention comprises a projection 10b cooperating, for its part, integrally with the lower surface 10s2 of said support 10s, that is to say according to a connection adapted mechanical, such as by way of preferred but non-limiting example, a connection type embedding. Such a mechanical connection may result from an operation of welding, screwing or molding of the projection 10b on the lower surface 10s2 of support 10s. For the purposes of the invention and throughout the document, the term "projection", any element forming a relief on said lower surface 10s2. According to the invention, such a projection 10b can have a substantially longiligne and regular configuration, that is to say, when for example the projection describes a substantially elongate relief, section U or V and the thickness e substantially constant of said projection 10b is much smaller, or even negligible, with respect to the length L and the width h of said projection, said thickness e being advantageously but not limitatively included a half-millimeter to five millimeters, and radial that is to say that said projection is advantageously arranged along a radius of the lower surface 10s2 of the support 10s. Finally, by its configuration, in particular the position of the projection under the support 10s, and possibly by the material which constitutes it, such a projection 10b of an agitator element 10 according to the invention is advantageously arranged to prevent the creation vortex. The creation of vortices has a negative impact, since it leads, as already mentioned, the introduction of oxygen or more generally gas within the liquid, the presence of oxygen impacting the results of some analyzes as for example COD and / or BOD by distorting them in particular, since oxygen can cause oxidation of the liquid. Similarly, when the liquid comprises filaments or more generally solid bodies, said projection 10b of an agitator element 10 according to the invention is advantageously arranged to prevent the retention of solid bodies. To do this, the protrusion 10b is substantially normal to the lower surface 10s2 of the support 10s.
Selon un mode de réalisation préféré mais non limitatif, décrit en lien avec les figures 2A à 2C, la tête d'agitation lOh d'un élément agitateur 10 conforme à l'invention peut comporter quatre saillies 10b longilignes, régulières et radiales disposées en miroir deux à deux, lesdites saillies 10b coopérant solidairement avec la surface inférieure 10s2 dudit support 10s. Préférentiellement mais non limitativement , lesdites saillies lOh peuvent présenter des formes et des dimensions sensiblement identiques. Un tel agencement s'avère particulièrement astucieux, puisqu'il permet une meilleure homogénéisation du liquide, du fait d'une plus grande surface de contact. L'invention ne saurait toutefois être limitée au nombre et à la disposition des saillies que comprend la tête d'agitation lOh d'un élément agitateur 10 conforme à l'invention. Par ailleurs, un autre but de l'invention consiste à proposer un dispositif d'homogénéisation et de prélèvement adaptable à un grand nombre de liquides. Selon le liquide, plus particulièrement sa composition et/ou sa viscosité, l'homogénéisation nécessaire pour obtenir des fractions sensiblement identiques peut directement dépendre de la vitesse d'agitation dudit liquide. En outre, l'homogénéisation et le prélèvement étant réalisés continuellement, en fonction du volume de liquide restant dans le contenant 2, il peut, dans certains cas, être nécessaire de diminuer ou d'augmenter la vitesse d'agitation du liquide. La vitesse d'agitation du liquide est directement induite et liée à la vitesse de rotation de l'arbre de transmission, qui guide la rotation de la tête de mélange lOh. Aussi, afin de répondre à de telles contraintes, c'est-à-dire afin de garantir un ajustement ou un contrôle de la vitesse d'agitation du liquide, en variante ou en complément, un dispositif 1 d'homogénéisation et de prélèvement conforme à l'invention peut également comporter des moyens de réglage 8 de la vitesse de rotation de l'arbre 10a de transmission. De tels moyens de réglage 8, lorsqu'ils sont présents au sein d'un dispositif d'homogénéisation et de prélèvement 1 conforme à l'invention, coopèrent avantageusement avec l'élément agitateur 10, plus particulièrement avec l'arbre de transmission 10a d'un tel élément agitateur 10. En effet, lesdits moyens de réglage 8 peuvent ainsi guider en rotation ledit arbre de transmission 10a selon une vitesse déterminée. Pour ce faire, à titre d'exemples préférés mais non limitatifs, les moyens de réglage 8 de la vitesse de rotation de l'arbre 10a d'un dispositif 1 d'homogénéisation et de prélèvement peuvent comporter un variateur, avantageusement couplé à un actionneur, sous la forme par exemple d'un moteur électrique. Conformément à un mode de réalisation non limitatif décrit en lien avec les figures 1A et 1B, de tels variateur et actionneur peuvent avantageusement être contenus au sein d'un boîtier conçu pour être étanche, de sorte que l'intégrité des éléments qu'il contient soit préservée. Egalement, en complément, un tel boitier peut comporter un interrupteur marche/arrêt et un potentiomètre coopérant avec 1' actionneur au moyen de bus de communication, délivrant ainsi respectivement une information de mise en marche ou en arrêt dudit actionneur et une information de régulation de la vitesse de rotation délivrée par ce dernier, permettant à l'opérateur de contrôler l'évolution de l'élément agitateur 10. According to a preferred but nonlimiting embodiment, described with reference to FIGS. 2A to 2C, the stirring head 10h of an agitator element 10 according to the invention may comprise four protrusions 10b that are elongate, regular and radial, arranged in a mirror two by two, said projections 10b cooperating integrally with the lower surface 10s2 of said support 10s. Preferably, but not exclusively, said projections 10h may have substantially identical shapes and dimensions. Such an arrangement is particularly clever, since it allows a better homogenization of the liquid, due to a larger contact area. The invention can not, however, be limited to the number and arrangement of the projections that comprises the stirring head 10h of an agitator element 10 according to the invention. Furthermore, another object of the invention is to provide a homogenizing and sampling device adaptable to a large number of liquids. Depending on the liquid, more particularly its composition and / or its viscosity, the homogenization necessary to obtain substantially identical fractions may directly depend on the stirring speed of said liquid. In addition, homogenization and sampling being carried out continuously, depending on the volume of liquid remaining in the container 2, it may in some cases be necessary to reduce or increase the stirring speed of the liquid. The stirring speed of the liquid is directly induced and linked to the speed of rotation of the transmission shaft, which guides the rotation of the mixing head 10h. Also, in order to respond to such constraints, that is to say in order to guarantee an adjustment or control of the stirring speed of the liquid, alternatively or in addition, a device 1 for homogenization and sampling compliant to the invention may also comprise means 8 for adjusting the speed of rotation of the transmission shaft 10a. Such adjustment means 8, when they are present in a homogenizing and sampling device 1 according to the invention, advantageously cooperate with the stirring element 10, more particularly with the transmission shaft 10a of Such an agitator element 10. In fact, said adjustment means 8 can thus guide in rotation said transmission shaft 10a according to a determined speed. For this purpose, by way of preferred but nonlimiting examples, the adjustment means 8 for the speed of rotation of the shaft 10a of a homogenizing and sampling device 1 may comprise a variator, advantageously coupled to an actuator , in the form for example of an electric motor. According to a non-limiting embodiment described with reference to FIGS. 1A and 1B, such dimmer and actuator can advantageously be contained within a housing designed to be sealed, so that the integrity of the elements contained therein be preserved. Also, in addition, such a housing may comprise an on / off switch and a potentiometer cooperating with the actuator by means of communication buses, thus respectively delivering a starting or stopping information of said actuator and a control information of the speed of rotation delivered by the latter, allowing the operator to control the evolution of the stirring element 10.
En variante ou en complément, afin de faciliter le caractère portable et autonome d'un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention, ce dernier peut avantageusement comporter une source d'énergie électrique autonome 6 adaptée pour coopérer avec l'actionneur de l'élément agitateur 10 et délivrer à ce dernier l'énergie électrique nécessaire à son fonctionnement, notamment la mise et/ou 1 ' entraînement en rotation de l'arbre de transmission 10a dudit élément agitateur 10. Une telle source d'énergie électrique peut se présenter sous la forme d'une ou plusieurs batteries éventuellement rechargeables par exemple, aptes à délivrer l'énergie électrique suffisante pour actionner ledit élément agitateur 10. L'emploi d'une ou plusieurs batteries permet notamment de fournir l'énergie nécessaire au fonctionnement d'un dispositif 1 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention. Aucun autre moyen autonome d'alimentation d'énergie électrique ne semble aujourd'hui adapté pour fournir l'énergie électrique nécessaire. En variante, si des chercheurs venaient à développer un moyen autonome adapté pour fournir ladite énergie électrique, l'invention prévoit qu'un tel moyen pourrait être employé en lieu et place d'une ou plusieurs batteries. Alternatively or additionally, in order to facilitate the portable and autonomous nature of a device 1 for homogenizing and sampling a liquid according to the invention, the latter may advantageously comprise an autonomous electrical energy source 6 adapted to cooperate with the actuator of the stirring element 10 and deliver to the latter the electrical energy necessary for its operation, in particular the setting and / or one drive in rotation of the transmission shaft 10a of said stirring element 10. Such electrical energy source may be in the form of one or more rechargeable batteries, for example, capable of delivering sufficient electrical energy to actuate said stirring element 10. The use of one or more batteries makes it possible in particular to provide the energy required for the operation of a device 1 for homogenizing and sampling a liquid according to the invention. No other autonomous power supply means today seems suitable for providing the necessary electrical energy. Alternatively, if researchers were to develop an autonomous means adapted to provide said electrical energy, the invention provides that such a means could be used instead of one or more batteries.
En variante ou en complément, un dispositif 10 d'homogénéisation et de prélèvement d'un liquide conforme à l'invention puisse être avantageusement connecté ou communicant, de sorte à remonter automatiquement des données précieuses nécessaires au prélèvement et aux futures analyses, et facilitant ainsi le travail de l'opérateur sur site. Pour ce faire, un tel dispositif 10 peut comporter un moyen de communication, un ou plusieurs capteurs (non représentés sur les figures) coopérant avec ledit moyen de communication, avantageusement sans fil ou filaire, pour mesurer et collecter une grandeur en lien avec le liquide prélevé. Ledit moyen de communication sans fil peut consister en qu'un transmetteur Bluetooth, wifi ou tout dispositif permettant d'assurer la même fonction ou une fonction équivalente. Un tel capteur peut consister en, à titre d'exemples non limitatifs un ou plusieurs contraintes de pression, sous la forme par exemple d'un ou plusieurs piézomètres. L'invention ne saurait toutefois être limitée à ce seul exemple de capteurs et pourrait, en variante ou en complément, être agencé pour délivrer toute grandeur exploitable et nécessaire. Le ou lesdits capteurs peuvent avantageusement produire deux types principaux d'informations, à savoir une mesure de position continue ou une détection de seuil. De cette manière, des données ou informations relatives au liquide prélevé au sein du dispositif pourront être transmises à un objet électronique connecté, par exemple un téléphone portable du type smartphone et/ou à une tablette, et/ou à un ordinateur comportant un programme d'ordinateur permettant d'exploiter les données ou informations réelles par rapport à des données ou informations prédéterminées. Un tel objet peut comporter une interface graphique adaptée pour restituer à un utilisateur ou à un superviseur des indications quant au liquide prélevé. L' invention a été décrite lors de son utilisation pour la réalisation d'échantillons liquides homogènes, provenant plus particulièrement d'effluents ou d'eaux usées, devant être analysés afin de caractériser le milieu d'origine du prélèvement par exemple en lien avec des stations d'épuration, des rivières, des lacs, etc. Alternatively or in addition, a device 10 for homogenizing and sampling a liquid according to the invention can be advantageously connected or communicating, so as to automatically reassemble valuable data needed for sampling and future analysis, thereby facilitating the work of the on-site operator. To do this, such a device 10 may comprise a communication means, one or more sensors (not shown in the figures) cooperating with said communication means, advantageously wireless or wired, for measuring and collecting a quantity in connection with the liquid collected. Said wireless communication means may consist of a Bluetooth transmitter, wifi or any device making it possible to perform the same function or an equivalent function. Such a sensor may consist, by way of non-limiting examples, of one or more pressure stresses, in the form of, for example, one or more piezometers. The invention can not, however, be limited to this single example of sensors and could, alternatively or in addition, be arranged to deliver any usable size and necessary. The at least one sensor may advantageously produce two main types of information, namely a continuous position measurement or a threshold detection. In this way, data or information relating to the liquid taken from the device may be transmitted to a connected electronic object, for example a mobile phone of the smartphone type and / or to a tablet, and / or to a computer having a program of computer for exploiting actual data or information against predetermined data or information. Such an object may include a graphic interface adapted to restore to a user or a supervisor indications as to the liquid taken. The invention has been described in its use for producing homogeneous liquid samples, more particularly from effluents or wastewater, to be analyzed in order to characterize the medium of origin of the sample for example in connection with sewage treatment plants, rivers, lakes, etc.
Il pourrait également être envisagé qu'un tel dispositif puisse être utilisé en lien avec le prélèvement de tout échantillon liquide, nécessitant une homogénéisation, à des fins de prélèvement et/ou d'analyse. L'invention ne saurait être limitée à l'application au sein de laquelle le dispositif conforme à l'invention est employé.  It could also be envisaged that such a device could be used in connection with the sampling of any liquid sample, requiring homogenization, for sampling and / or analysis purposes. The invention can not be limited to the application in which the device according to the invention is used.
D'autres modifications peuvent être envisagées sans sortir du cadre de la présente invention défini par les revendications ci-annexées.  Other modifications may be envisaged without departing from the scope of the present invention defined by the appended claims.

Claims

REVENDICATIONS
Elément agitateur (10) pour dispositif (1) d'homogénéisation et de prélèvement d'un liquide, comportant un arbre de transmission (10a), une tête d'agitation (lOh) coopérant solidairement avec ledit arbre de transmission (10a), ledit élément agitateur (10) étant caractérisé en ce que la tête d'agitation (lOh) comporte un support (10s) présentant une surface inférieure (10s2), ledit support (10s) coopérant solidairement avec ledit arbre de transmission (10a), une saillie (10b) sensiblement longiligne et radiale agencée pour prévenir la création de vortex et la rétention de corps solide lorsque le liquide en comporte, ladite saillie (10b) coopérant solidairement avec la surface inférieure (10s2) dudit support (10s). Agitator element (10) for homogenizing and liquid sampling device (1), comprising a transmission shaft (10a), an agitating head (10h) cooperating integrally with said transmission shaft (10a), said agitator element (10) being characterized in that the stirring head (10h) comprises a support (10s) having a lower surface (10s2), said support (10s) cooperating integrally with said transmission shaft (10a), a protrusion (10b) substantially elongate and radial arranged to prevent the creation of vortex and retention of solid body when the liquid has, said projection (10b) cooperating integrally with the lower surface (10s2) of said support (10s).
Elément agitateur (10) selon la revendication précédente, pour lequel la tête d'agitation (lOh) comporte quatre saillies (10b) longilignes et radiales disposées en miroir deux à deux, lesdites saillies (10b) coopérant solidairement avec la surface inférieure (10s2) dudit support (10s). Agitator element (10) according to the preceding claim, wherein the stirring head (10h) comprises four projections (10b) long and radial radially arranged in pairs, said projections (10b) cooperating integrally with the lower surface (10s2) said support (10s).
Dispositif (1) d'homogénéisation et de prélèvement d'un liquide, comportant un contenant (2) comprenant une ouverture (3) pour collecter ledit liquide, des moyens (7) de prélèvement du liquide coopérant avec ledit contenant (2), ledit dispositif d'homogénéisation (1) étant caractérisé en ce qu'il comporte en outre un élément agitateur (10) selon l'une quelconque des revendications précédentes. Device (1) for homogenization and sampling of a liquid, comprising a container (2) comprising an opening (3) for collecting said liquid, means (7) for sampling the liquid cooperating with said container (2), said device homogenization device (1) being characterized in that it further comprises an agitator element (10) according to any one of the preceding claims.
Dispositif (1) selon la revendication précédente, pour lequel les moyens de prélèvement (7) du liquide comportent une vanne positionnée dans la partie inférieure du contenant (2) . Device (1) according to the preceding claim, wherein the liquid sampling means (7) comprise a valve positioned in the lower part of the container (2).
Dispositif (1) selon l'une quelconque des revendications 3 et 4, comportant des moyens de réglage (8) de la vitesse de rotation de l'arbre (10a) coopérant avec ledit élément agitateur. Dispositif (1) selon la revendication précédente, pour lequel les moyens de réglage (8) de la vitesse de rotation de l'arbre (10a) comportent un variateur couplé à un actionneur. Device (1) according to any one of claims 3 and 4, comprising means (8) for adjusting the speed of rotation of the shaft (10a) cooperating with said stirring element. Device (1) according to the preceding claim, wherein the means (8) for adjusting the speed of rotation of the shaft (10a) comprise an inverter coupled to an actuator.
Dispositif (1) selon la revendication précédente, comportant une source d'énergie autonome (6) adaptée pour coopérer avec l' actionneur de l'élément agitateur (10) et délivrer à ce dernier l'énergie électrique nécessaire à son fonctionnement. Device (1) according to the preceding claim, comprising an autonomous power source (6) adapted to cooperate with the actuator of the stirring element (10) and deliver to the latter the electrical energy necessary for its operation.
EP18762358.2A 2017-07-20 2018-07-19 Device for homogenising and sampling a liquid Pending EP3655147A1 (en)

Applications Claiming Priority (2)

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FR1756902A FR3069175B1 (en) 2017-07-20 2017-07-20 DEVICE FOR HOMOGENIZING AND SAMPLING A LIQUID
PCT/FR2018/051844 WO2019016479A1 (en) 2017-07-20 2018-07-19 Device for homogenising and sampling a liquid

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FR3124407A1 (en) 2021-06-23 2022-12-30 Jedeau Collection canister for a device for taking samples in-situ of a liquid effluent
CN114855488B (en) * 2022-06-15 2023-09-26 江苏泽宇森碳纤维科技股份有限公司 Preparation equipment of flame-retardant waterproof glass fiber wet-process mat

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US8122956B2 (en) * 2008-07-03 2012-02-28 Baker Hughes Incorporated Magnetic stirrer

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