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WO1989010789A1 - Equipment for supporting and heating recipients for the reaction, treatment or analysis of various products - Google Patents

Equipment for supporting and heating recipients for the reaction, treatment or analysis of various products Download PDF

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Publication number
WO1989010789A1
WO1989010789A1 PCT/FR1989/000207 FR8900207W WO8910789A1 WO 1989010789 A1 WO1989010789 A1 WO 1989010789A1 FR 8900207 W FR8900207 W FR 8900207W WO 8910789 A1 WO8910789 A1 WO 8910789A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
block
heating
heating block
housing
Prior art date
Application number
PCT/FR1989/000207
Other languages
French (fr)
Inventor
Bernard Joux
Yves Ploquin
Original Assignee
Rhone Poulenc Chimie
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 Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of WO1989010789A1 publication Critical patent/WO1989010789A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • 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
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/452—Magnetic mixers; Mixers with magnetically driven stirrers using independent floating stirring elements

Definitions

  • the present invention relates to the technical field of chemical reaction, treatment or analysis of samples of various products, placed in containers responsible for ensuring their confinement and / or their heating and maintaining temperature and / or their stirring. , while providing a possibility of sampling, injection or inerting.
  • containers generally made of glass, with a flat or hemispherical base or bottom, the dimensions of which are determined to make them capable of ensuring the confinement of a dose of a sample. .
  • the containment is ensured by a plug, closed or open, associated in this case with a septum seal.
  • the cap is fitted on the neck of such a container by fitting or screwing.
  • containers in blind housings, of vertical axis, presented by a heating block. Generally, the containers rest by their base on the bottom of the blind housings.
  • the containers are suspended, by means of their stopper, on a movable plate superimposed on the block and displaceable according to a vertical reciprocating movement.
  • Means of the type described above can be considered as capable of appropriately assuming the support and heating function of the samples confined in the containers.
  • a number of drawbacks are attached to these structures.
  • the containers are of certain fragility and can be broken or broken, either by simple contact with the heating block, at the time of
  • the sample flows out of the container, into the housing and / or onto the heating block, representing significant pollution for the installation, or even for the operator (s).
  • the particular structure of the heating block is the source of cleaning difficulties, more particularly in the bottom of blind dwellings.
  • the devices of the above type are generally associated with stirring means involving, in most cases, a magnetic block with rotating, static or dynamic fields (rotating magnets), localized, making it possible to cause the rotation of magnetic bars arranged in the containers.
  • the localized rotating magnetic fields are arranged directly above the blind housings.
  • the temperature imposed on the heating block is responsible, in such a structure, for a weakening of the rotating magnetic fields which are no longer able, gradually, to maintain the rotation of the magnetic bars ensuring the agitation of the samples.
  • the object of the invention is to remedy the above drawbacks by proposing a device for supporting and heating containers, particularly designed to be of simple and robust construction and to allow rapid, practical and efficient cleaning of its various elements. constitutive, in case of breakage of the containers and / or spillage of samples contained.
  • Another object of the structure of the device according to the invention resides in the removable modular aspect which there attachment, to facilitate the adaptation of such a device according to the conditions of tests or experiments to be carried out.
  • An additional objective of the invention lies in the physical decoupling between the heating block and the magnetic stirring means which can thus keep their specific characteristics, as well as their drive capacity, whatever the rise in temperature imposed on the heating block. .
  • the container temperature regulation and support device is characterized in that the heating block: - is mounted on a base by insulating spacer feet providing a gap separating the base of the block from above the base, which consists of a block provided with at least one magnetic stirring means with a static or dynamic rotating field, arranged in coincidence with the housing,
  • a cover which forms a plate superimposed at a distance from the heating block and provided with at least one hole placed directly above the housing, and which is adapted to the heating block by at least insulating shims, the height of the heating block being defined so that the container rests by its cap on the cover and so that its bottom is flush with the base of the block. Even if it has been written above that the container rests by its cap on the cover, this does not exclude that a spacer in the shape of a hollow cylinder can be interposed between the cap and the rollover.
  • Fig. 1 is a sectional elevation of a support and heating device according to the invention.
  • Fig. 2 is a section taken substantially along line II-II of FIG. 1.
  • Fig. 3 is a partial section showing, on a larger scale, some of the means of the invention.
  • the support and heating appliance illustrated is shown in a construction method intended to support six containers 1, respectively constituted by a body 2, for example made of glass, with closed bottom 3, in particular hemispherical.
  • Each container 1 has a neck 4 on which can be adapted a plug 5 of insulating material, of the closed or open type, which can be grasped and maneuvered manually or automatically.
  • Each container 1 is intended to ensure the confinement of a sample 6 of any product, to be subjected to reaction, analysis or treatment, with application of a rise in temperature to a determined regulated threshold and, simultaneously or not, with agitation.
  • the stirring function is preferably provided by means of a magnetic bar 7 placed in the container 1.
  • the support and heating apparatus can be designed for receptacles 1 of shape substantially different from that illustrated only by way of example in the drawings. Similarly, the support and heating can be designed to support a different number of receptacles 1, or even possibly only one.
  • the apparatus comprises a heating block 10 made of a material which is a good conductor of heat and with high thermal inertia, such as copper or aluminum.
  • the heating block 10 delimits, according to an appropriate geometrical layout, at least one, and in the present case six housings 11 respectively of vertical axis, executed through to lead to the base 12 and the top 13 of the block.
  • the through housings 11 have a diameter adjusted, by excess, to the largest outside diameter of the bodies 2 which can thus be engaged by simple sliding with a relative clearance in the housings 11.
  • the heating block 10 is provided with heating means 14 which may be constituted by electric candles or by conduits capable of conveying a heat transfer fluid distributed and maintained at temperature by a circuit to which the conduits are connected.
  • heating means 14 may be constituted by electric candles or by conduits capable of conveying a heat transfer fluid distributed and maintained at temperature by a circuit to which the conduits are connected.
  • the heating block is provided, on its base 12, with insulating feet 15 by which it is fitted on top 16 of a stirring base 17, of the type with localized rotating magnetic fields, static or dynamic.
  • the base 17 comprises six localized rotating magnetic fields which are arranged directly above the housings 11 when the heating block 10 is placed over the stirring base 17.
  • Means, not shown, are associated with the base 17 to activate the localized rotating magnetic fields 18 when necessary. These means, well known to those skilled in the art, are not shown in the drawings.
  • the feet 15 form insulating spacers which delimit, between the base 12 and the top 16, an interval 19 assuming a barrier function preventing thermal losses by conduction by the mattress or the air gap which it provides.
  • the rise in temperature of the heating block 10 is not transmitted directly to the base 17 and does not risk weakening the power of the localized fields rotating, ensuring the rotational drive of the magnetic bars 7 arranged in the containers 1, which are here test tubes.
  • the insulating feet 15 are preferably made so as to cooperate with centering means 20 presented by the top 16.
  • the centering means 20 are intended to define an adaptation position of the heating block 10 making it possible to ensure the vertical alignment and effective vertical alignment between the through housings 11 and the localized rotating magnetic fields 18, so that the influence of the latter is optimal on the bars 7.
  • the centering means 20 can, for example, be formed by pins or nipples 21 cooperating with centering recesses 22 presented by feet 15.
  • the support and heating apparatus further comprises a cover 25 made, preferably, of a thin sheet, perforated, of low thermal inertia.
  • the cowling 25 comprises an upper plate 26 bordered by a skirt 21 and constitutes a casing which can be fitted onto the block 10 and the base 17 because it is kept in relation to it by insulating wedges 28 of the insulating slides 29 and of the insulating stops
  • the casing 25 delimits, with the block 10 and partly the base 17, a gap 31 leaving an insulation air mattress, just like that maintained by the gap 19.
  • the perforations of the sheet metal thin hood 25 ensure controlled air circulation in the interval 31, which allows an external temperature of the hood acceptable to protect the operator against the risk of burns and to prevent deterioration of the cap 5 of the containers 1.
  • the slides 29 and the stops 30 constitute, moreover, centering means ensuring alignment, with the vertical axes of the housings 11, of holes 32 formed in the plate 27.
  • the holes 32 ensure the passage of the various containers which are, in this way, suspended, by means of their stopper 5, on the plate 26 assuming a function similar to a horizontal rack.
  • the height of the wedges 28 and the thickness of the block 10 are chosen as a function of the height of the containers 1, so that the useful filling height of the latter is entirely included in the thickness of the block 10 and that the bottom 3, at most, is flush with the base 12 of the block. In this way, the content of each container 1 thus benefits from the thermal radiation provided by the latter.
  • the skirt 27 has, Locally, an orifice 33 intended for the passage of a temperature measurement probe 34 inserted in a well arranged in the heating block 10.
  • the support and heating device in accordance with the invention, makes it possible to have a heating block, with through housings, easily removable with respect to the cowling. 27 and at the base 17, to facilitate the possible cleaning operations.
  • through housings 11 makes it possible to keep the bottoms 3 of the different containers 1 away from the base 17 and to reduce, consequently, the risks of breakage likely to occur during the installation of each container or, during sampling or injection operations.
  • Another advantage of the structure according to the invention lies in the implementation of relative centering means between the base 17 and the block 10 and between the latter and the cowling 25.
  • the suspension holes 32 are aligned with the through housings 11, which are also arranged at the exact plumb of the localized magnetic fields 18.
  • Another advantage of the construction or circular structure, adopted for the realization of the support and heating apparatus resides in the possibility of adapting, easily and quickly, the heating block 10 on a base 17 and thus choosing, very precisely, the characteristics of the latter as a function of the agitation parameters to be imposed on the samples 6.
  • Such a possibility coping can also be considered in the opposite direction, that is to say by adapting to a base 17, determined agitation characteristics, a heating block 10 having means for raising and regulating the temperature according to a different threshold.
  • Another characteristic of the object of the invention lies in the simple modular structure of manufacture and adaptation making it possible to produce an efficient device at low cost, with modular characteristics.
  • Fig. 2 shows that the holes 32 can be fitted, on the top of the plate 27, each, with a pin 35, the elastically deformable branches of which delimit a spacing less than the diameter of the hole 32.
  • This arrangement can be envisaged when the hole 32 is executed, as is the housing 11, to deliver passage to a container 1 comprising a bulb with a diameter significantly greater than that of the neck by which it must be suspended, in collaboration with the closing cap.
  • the invention can be implemented in the technical field of chemical reaction, treatment or analysis of samples and used as an apparatus for supporting and heating reaction, treatment or analysis vessels of various products.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

The equipment disclosed comprises a heating unit mounted on a support stand (17) on insulating feet (15) which maintain a space (19) between the base (12) of the unit and the top (16) of the support stand. Said support stand consists of a unit provided with at least one magnetic stirring means (18) with a static or dynamic rotating field, lodged in the housing (11). The heating unit delimits at least one transverse housing (11) which opens into the space, and is covered with a cowling (25) which forms a plate (26) superimposed on the unit at a distance from the latter and provided with at least one hole (32) located vertically above the housing, and which is fitted on the unit by at least insulating blocks (29). The height of the unit is defined so that the vessel is supported by its stopper on the cowling and so that its bottom touches the base of the unit. Application to the treatment of samples.

Description

APPAREIL DE SUPPORT ET DE CHAUFFAGE DE RECIPIENTS DE REACTION, DE TRAITEMENT OU D'ANALYSE DE PRODUITS DIVERS APPARATUS FOR SUPPORTING AND HEATING CONTAINERS FOR REACTION, PROCESSING OR ANALYSIS OF VARIOUS PRODUCTS
DOMAINE TECHNIQUE :TECHNICAL AREA :
La présente invention concerne le domaine technique de la réaction chimique, du traitement ou de l'analyse d'échantillons de produits divers, disposés dans des récipients chargés d'assurer leur confinement et/ou leur chauffage et maintien en température et/ou leur agitation, tout en procurant une possibilité de prélèvement, d'injection ou d'inertage.The present invention relates to the technical field of chemical reaction, treatment or analysis of samples of various products, placed in containers responsible for ensuring their confinement and / or their heating and maintaining temperature and / or their stirring. , while providing a possibility of sampling, injection or inerting.
TECHNIQUE ANTERIEURE :PRIOR TECHNIQUE:
Pour assumer les fonctions ci-dessus, il est connu d'utiliser des récipients, généralement en verre, à base ou fond plat ou hémisphérique, dont les dimensions sont déterminées pour les rendre aptes à assurer le confinement d'une dose d'un échantillon. Le confinement est assuré par un bouchon, fermé ou ouvert, associé dans ce cas à un joint septum. Le bouchon est adapté sur le col d'un tel récipient par emboîtement ou vissage. Pour faciliter la conduite des opérations de réaction, de traitement ou d'analyse des échantillons ainsi confinés, il est connu de placer des récipients dans des logements borgnes, d'axe vertical, présentés par un bloc de chauffage. Généralement, les récipients reposent par leur base sur le fond des logements borgnes. Dans une autre réalisation, telle que divulguée par la demande allemande DE-A-30 24 210, les récipients sont suspendus, par l'intermédiaire de leur bouchon, sur une plaque mobile superposée au bloc et déplaçable selon un mouvement recti ligne alternatif vertical.To assume the above functions, it is known to use containers, generally made of glass, with a flat or hemispherical base or bottom, the dimensions of which are determined to make them capable of ensuring the confinement of a dose of a sample. . The containment is ensured by a plug, closed or open, associated in this case with a septum seal. The cap is fitted on the neck of such a container by fitting or screwing. To facilitate the conduct of reaction, processing or analysis operations on the samples thus confined, it is known to place containers in blind housings, of vertical axis, presented by a heating block. Generally, the containers rest by their base on the bottom of the blind housings. In another embodiment, as disclosed by German application DE-A-30 24 210, the containers are suspended, by means of their stopper, on a movable plate superimposed on the block and displaceable according to a vertical reciprocating movement.
Des moyens du type décrit ci-dessus peuvent être considérés comme susceptibles d'assumer convenablement la fonction de support et de chauffage des échantillons confinés dans les récipients. Cependant, un certain nombre d'inconvénients sont attachés à ces structures.Means of the type described above can be considered as capable of appropriately assuming the support and heating function of the samples confined in the containers. However, a number of drawbacks are attached to these structures.
Tout d'abord, il est connu que Les récipients sont de fragilité certaine et peuvent être rompus ou cassés, soit par simple contact avec Le bloc de chauffage, au moment deFirst of all, it is known that the containers are of certain fragility and can be broken or broken, either by simple contact with the heating block, at the time of
L'introduction dans Les logements, de Leur sortie ou, encore, de L'injection ou du prélèvement par L'intermédiaire du bouchon, soit, encore, par un choc thermique brutal appliqué au fond.The introduction into the accommodation, of their exit or, again, of the injection or withdrawal via the plug, or, again, by a brutal thermal shock applied to the bottom.
Dans un cas de bris ou de rupture, L'échantillon s'écoule hors du récipient, dans Le Logement et/ou sur Le bloc chauffant, en représentant une pollution non négligeable pour l'installation, voire pour Le ou Les opérateurs.In the event of breakage or rupture, the sample flows out of the container, into the housing and / or onto the heating block, representing significant pollution for the installation, or even for the operator (s).
La structure particulière du bloc chauffant est La source de difficultés de nettoyage, pLus particulièrement dans Le fond des logements borgnes.The particular structure of the heating block is the source of cleaning difficulties, more particularly in the bottom of blind dwellings.
Les appareils du type ci-dessus sont, généralement, associés à des moyens d'agitation faisant intervenir, dans la plupart des cas, un bloc magnétique à champs tournants, statiques ou dynamiques Cou aimants tournants), Localisés, permettant de provoquer la rotation de barreaux magnétiques disposés dans les récipients. Les champs magnétiques tournants Localisés sont disposés à l'aplomb des logements borgnes.The devices of the above type are generally associated with stirring means involving, in most cases, a magnetic block with rotating, static or dynamic fields (rotating magnets), localized, making it possible to cause the rotation of magnetic bars arranged in the containers. The localized rotating magnetic fields are arranged directly above the blind housings.
La température imposée au bloc chauffant est responsable, dans une telle structure,' d'un affaiblissement des champs magnétiques tournants qui ne sont plus à même, progressivement, d'entretenir La rotation des barreaux magnétiques assurant L'agitation des échantillons.The temperature imposed on the heating block is responsible, in such a structure, for a weakening of the rotating magnetic fields which are no longer able, gradually, to maintain the rotation of the magnetic bars ensuring the agitation of the samples.
L'objet de l'invention vise à remédier aux inconvénients ci-dessus en proposant un appareil de support et de chauffage de récipients, particulièrement conçu pour être de construction simple et robuste et pour permettre un nettoyage rapide, pratique et efficace de ses différents éléments constitutifs, en cas de bris des récipients et/ou de déversement d'échantillons contenus. Un autre objet de la structure de l'appareil selon L'invention réside dans L'aspect modulaire démontable qui s'y attache, pour faciliter l'adaptation d'un tel appareil en fonction des conditions d'essais ou d'expérimentations devant être menées.The object of the invention is to remedy the above drawbacks by proposing a device for supporting and heating containers, particularly designed to be of simple and robust construction and to allow rapid, practical and efficient cleaning of its various elements. constitutive, in case of breakage of the containers and / or spillage of samples contained. Another object of the structure of the device according to the invention resides in the removable modular aspect which there attachment, to facilitate the adaptation of such a device according to the conditions of tests or experiments to be carried out.
Un objectif supplémentaire de l'invention réside dans le découplage physique entre le bloc chauffant et Les moyens d'agitation magnétique qui peuvent ainsi garder Leurs caractéristiques spécifiques, ainsi que leur capacité d'entraînement, quelle que soit la montée en température imposée au bloc chauffant.An additional objective of the invention lies in the physical decoupling between the heating block and the magnetic stirring means which can thus keep their specific characteristics, as well as their drive capacity, whatever the rise in temperature imposed on the heating block. .
EXPOSE DE L'INVENTION :PRESENTATION OF THE INVENTION:
Pour atteindre les objectifs ci-dessus, l'appareil de support et de régulation en température de récipients est caractérisé en ce que Le bloc chauffant : - est monté sur une embase par des pieds entretoises isolants ménageant un intervalle séparant la base du bloc du dessus de l'embase, laquelle est constituée par un bloc pourvu d'au moins un moyen d'agitation magnétique à champ tournant statique ou dynamique, disposé en coïncidence avec le logement,To achieve the above objectives, the container temperature regulation and support device is characterized in that the heating block: - is mounted on a base by insulating spacer feet providing a gap separating the base of the block from above the base, which consists of a block provided with at least one magnetic stirring means with a static or dynamic rotating field, arranged in coincidence with the housing,
- délimite au moins un logement traversant s'ouvrant dans l'intervalle,- delimits at least one through housing opening in the interval,
- est recouvert d'un capotage qui forme une platine superposée à distance du bloc chauffant et pourvue d'au moins un trou placé à l'aplomb du logement, et qui est adapté sur le bloc chauffant par au moins des cales isolantes, la hauteur du bloc chauffant étant définie pour que le récipient repose par son bouchon sur le capotage et pour que son fond affleure la base du bloc. Même si l'on a écrit ci-avant que Le récipient repose par son bouchon sur le capotage, cela n'exclut pas qu'une entretoise en forme de cylindre creux puisse être intercalée entre le bouchon et le capotage.- is covered with a cover which forms a plate superimposed at a distance from the heating block and provided with at least one hole placed directly above the housing, and which is adapted to the heating block by at least insulating shims, the height of the heating block being defined so that the container rests by its cap on the cover and so that its bottom is flush with the base of the block. Even if it has been written above that the container rests by its cap on the cover, this does not exclude that a spacer in the shape of a hollow cylinder can be interposed between the cap and the rollover.
Diverses autres caractéristiques ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemple non limitatif, une forme de réalisation de L'objet de l'invention.Various other characteristics will emerge from the description given below with reference to the appended drawings which show, by way of nonlimiting example, an embodiment of the object of the invention.
BREVE DESCRIPTION DES DESSINS :BRIEF DESCRIPTION OF THE DRAWINGS:
La fig. 1 est une coupe-élévation d'un appareil de support et de chauffage conforme à l'invention.Fig. 1 is a sectional elevation of a support and heating device according to the invention.
La fig. 2 est une coupe prise sensiblement selon La ligne II-II de la fig. 1.Fig. 2 is a section taken substantially along line II-II of FIG. 1.
La fig. 3 est une coupe partielle montrant, à plus grande échelle, certains des moyens de l'invention.Fig. 3 is a partial section showing, on a larger scale, some of the means of the invention.
MEILLEURE MANIERE DE REALISER L'INVENTION :BEST WAY TO IMPLEMENT THE INVENTION:
L'appareil de support et de chauffage illustré est représenté dans un mode de construction destiné à assurer le support de six récipients 1, respectivement constitués par un corps 2, par exemple en verre, à fond fermé 3, notamment hémisphérique. Chaque récipient 1 comporte un col 4 sur Lequel peut être adapté un bouchon 5 en matière isolante, du type fermé ou ouvert, préhensible et manoeuvrable manuellement ou automatiquement. Chaque récipient 1 est destiné à assurer le confinement d'un échantillon 6 de produit quelconque, devant être soumis à réaction, analyse ou traitement, avec application d'une montée en température jusqu'à un seuil déterminé régulé et, simultanément ou non, avec agitation. La fonction d'agitation est, de préférence, assurée par L'intermédiaire d'un barreau magnétique 7 disposé dans le récipient 1.The support and heating appliance illustrated is shown in a construction method intended to support six containers 1, respectively constituted by a body 2, for example made of glass, with closed bottom 3, in particular hemispherical. Each container 1 has a neck 4 on which can be adapted a plug 5 of insulating material, of the closed or open type, which can be grasped and maneuvered manually or automatically. Each container 1 is intended to ensure the confinement of a sample 6 of any product, to be subjected to reaction, analysis or treatment, with application of a rise in temperature to a determined regulated threshold and, simultaneously or not, with agitation. The stirring function is preferably provided by means of a magnetic bar 7 placed in the container 1.
IL doit être considéré que l'appareil de support et de chauffage peut être conçu pour des récipients 1 de forme sensiblement différente de celle illustrée uniquement à titre d'exemple aux dessins. De même, L'appareil de support et de chauffage peut être conçu pour supporter un nombre différent de récipients 1, voire, éventuellement, un seul.It should be considered that the support and heating apparatus can be designed for receptacles 1 of shape substantially different from that illustrated only by way of example in the drawings. Similarly, the support and heating can be designed to support a different number of receptacles 1, or even possibly only one.
L'appareil comprend un bloc chauffant 10 réalisé en un matériau bon conducteur de la chaleur et à forte inertie thermique, tel qu'en cuivre ou en aluminium. Le bloc chauffant 10 délimite, selon une implantation géométrique appropriée, au moins un, et dans le cas présent six logements 11 respectivement d'axe vertical, exécutés de façon traversante pour déboucher sur La base 12 et le dessus 13 du bloc. Les logements traversants 11 possèdent un diamètre ajusté, par excès, au plus grand diamètre extérieur des corps 2 qui peuvent ainsi être engagés par simple glissement avec un jeu relatif dans les logements 11.The apparatus comprises a heating block 10 made of a material which is a good conductor of heat and with high thermal inertia, such as copper or aluminum. The heating block 10 delimits, according to an appropriate geometrical layout, at least one, and in the present case six housings 11 respectively of vertical axis, executed through to lead to the base 12 and the top 13 of the block. The through housings 11 have a diameter adjusted, by excess, to the largest outside diameter of the bodies 2 which can thus be engaged by simple sliding with a relative clearance in the housings 11.
Le bloc chauffant 10 est pourvu de moyens de chauffage 14 qui peuvent être constitués par des bougies électriques ou par des conduits aptes à véhiculer un fluide caloporteur distribué et entretenu en température par un circuit auquel les conduits sont raccordés.The heating block 10 is provided with heating means 14 which may be constituted by electric candles or by conduits capable of conveying a heat transfer fluid distributed and maintained at temperature by a circuit to which the conduits are connected.
Le bloc chauffant est pourvu, sur sa base 12, de pieds isolants 15 par lesquels il est adapté sur le dessus 16 d'une embase 17 d'agitation, du type à champs magnétiques tournants localisés, statiques ou dynamiques. Dans le cas présent, l'embase 17 comporte six champs magnétiques tournants localisés qui sont disposés à l'aplomb des logements 11 lorsque le bloc chauffant 10 est placé par-dessus l'embase d'agitation 17. Des moyens, non représentés, sont associés à L'embase 17 pour activer les champs magnétiques tournants Localisés 18 lorsque cela est nécessaire. Ces moyens, bien connus de l'homme de l'art, ne sont pas représentés aux dessins.The heating block is provided, on its base 12, with insulating feet 15 by which it is fitted on top 16 of a stirring base 17, of the type with localized rotating magnetic fields, static or dynamic. In the present case, the base 17 comprises six localized rotating magnetic fields which are arranged directly above the housings 11 when the heating block 10 is placed over the stirring base 17. Means, not shown, are associated with the base 17 to activate the localized rotating magnetic fields 18 when necessary. These means, well known to those skilled in the art, are not shown in the drawings.
De préférence, les pieds 15 forment des entretoises isolantes qui délimitent, entre la base 12 et le dessus 16, un intervalle 19 assumant une fonction de barrière évitant les pertes thermiques par conduction par le matelas ou La lame d'air qu'il ménage. De cette façon, la montée en température du bloc chauffant 10 n'est pas transmise directement à l'embase 17 et ne risque pas d'affaiblir la puissance des champs localisés tournants, assurant l'entraînement en rotation des barreaux magnétiques 7 disposés dans Les récipients 1, qui sont ici des tubes à essais.Preferably, the feet 15 form insulating spacers which delimit, between the base 12 and the top 16, an interval 19 assuming a barrier function preventing thermal losses by conduction by the mattress or the air gap which it provides. In this way, the rise in temperature of the heating block 10 is not transmitted directly to the base 17 and does not risk weakening the power of the localized fields rotating, ensuring the rotational drive of the magnetic bars 7 arranged in the containers 1, which are here test tubes.
Les pieds isolants 15 sont, de préférence, réalisés de manière à coopérer avec des moyens de centrage 20 présentés par Le dessus 16. Les moyens de centrage 20 sont destinés à définir une position d'adaptation du bloc chauffant 10 permettant d'assurer l'aplomb et L'alignement vertical effectif entre Les logements traversants 11 et les champs magnétiques tournants localisés 18, de manière que L'influence de ces derniers soit optimale sur les barreaux 7. Les moyens de centrage 20 peuvent, par exemple, être formés par des pions ou des tétons 21 coopérant avec des évidements de centrage 22 présentés par Les pieds 15.The insulating feet 15 are preferably made so as to cooperate with centering means 20 presented by the top 16. The centering means 20 are intended to define an adaptation position of the heating block 10 making it possible to ensure the vertical alignment and effective vertical alignment between the through housings 11 and the localized rotating magnetic fields 18, so that the influence of the latter is optimal on the bars 7. The centering means 20 can, for example, be formed by pins or nipples 21 cooperating with centering recesses 22 presented by feet 15.
L'appareil de support et de chauffage comprend, par ailleurs, un capotage 25 réalisé, de préférence, en une tôle mince, perforée, de faible inertie thermique. Le capotage 25 comprend une platine supérieure 26 bordée par une jupe 21 et constitue une enveloppe emboîtable sur le bloc 10 et l'embase 17 car rapport auxquels elle est maintenue à distance par des cales isolantes 28 des glissières isolantes 29 et des butées isolantesThe support and heating apparatus further comprises a cover 25 made, preferably, of a thin sheet, perforated, of low thermal inertia. The cowling 25 comprises an upper plate 26 bordered by a skirt 21 and constitutes a casing which can be fitted onto the block 10 and the base 17 because it is kept in relation to it by insulating wedges 28 of the insulating slides 29 and of the insulating stops
30. Le capotage 25 délimite, avec le bloc 10 et en partie l'embase 17, un intervalle 31 laissant subsister un matelas d'air d'isolation, au même titre que celui maintenu par L'intervalle 19. Les perforations de La tôle mince du capotage 25 assurent une circulation d'air contrôlée dans l'intervalle 31, ce qui permet d'obtenir une température externe du capotage acceptable pour La protection de L'opérateur contre Les risques de brûlures et pour éviter la détérioration du bouchon 5 des récipients 1.30. The casing 25 delimits, with the block 10 and partly the base 17, a gap 31 leaving an insulation air mattress, just like that maintained by the gap 19. The perforations of the sheet metal thin hood 25 ensure controlled air circulation in the interval 31, which allows an external temperature of the hood acceptable to protect the operator against the risk of burns and to prevent deterioration of the cap 5 of the containers 1.
Les glissières 29 et les butées 30 constituent, par ailleurs, des moyens de centrage assurant l'alignement, avec les axes verticaux des logements 11, de trous 32 ménagés dans la platine 27. Les trous 32 assurent le passage des différents récipients qui sont, de cette manière, suspendus, par l'intermédiaire de leur bouchon 5, sur la platine 26 assumant une fonction assimilable à un râtelier horizontal. La hauteur des cales 28 et l'épaisseur du bloc 10 sont choisies en fonction de la hauteur des récipients 1, de manière que la hauteur de remplissage utile de ces derniers soit entièrement incluse dans l'épaisseur du bloc 10 et que le fond 3, tout au plus, affleure la base 12 du bloc. De cette manière, Le contenu de chaque récipient 1 bénéficie ainsi du rayonnement thermique dispensé par ce dernier.The slides 29 and the stops 30 constitute, moreover, centering means ensuring alignment, with the vertical axes of the housings 11, of holes 32 formed in the plate 27. The holes 32 ensure the passage of the various containers which are, in this way, suspended, by means of their stopper 5, on the plate 26 assuming a function similar to a horizontal rack. The height of the wedges 28 and the thickness of the block 10 are chosen as a function of the height of the containers 1, so that the useful filling height of the latter is entirely included in the thickness of the block 10 and that the bottom 3, at most, is flush with the base 12 of the block. In this way, the content of each container 1 thus benefits from the thermal radiation provided by the latter.
La jupe 27 comporte, Localement, un orifice 33 destiné au passage d'une sonde 34 de mesure de température insérée dans un puits aménagé dans le bloc chauffant 10.The skirt 27 has, Locally, an orifice 33 intended for the passage of a temperature measurement probe 34 inserted in a well arranged in the heating block 10.
Ainsi que cela ressort de ce qui précède et de l'examen des dessins, l'appareil de support et de chauffage, conforme à l'invention, permet de disposer d'un bloc chauffant, à Logements traversants, aisément démontable par rapport au capotage 27 et à l'embase 17, pour faciliter les opérations de nettoyage éventuel les.As is apparent from the above and from the examination of the drawings, the support and heating device, in accordance with the invention, makes it possible to have a heating block, with through housings, easily removable with respect to the cowling. 27 and at the base 17, to facilitate the possible cleaning operations.
Par ailleurs, l'existence de logements traversants 11 permet de maintenir Les fonds 3 des différents récipients 1 à distance de l'embase 17 et de réduire, en conséquence, les risques de bris susceptibles d'intervenir lors de La mise en place de chaque récipient ou, encore, lors des opérations de prélèvement ou d' injection.Furthermore, the existence of through housings 11 makes it possible to keep the bottoms 3 of the different containers 1 away from the base 17 and to reduce, consequently, the risks of breakage likely to occur during the installation of each container or, during sampling or injection operations.
Un autre avantage de la structure selon l'invention réside dans la mise en oeuvre de moyens de centrage relatif entre l'embase 17 et le bloc 10 et entre ce dernier et le capotage 25. Ainsi, dans tous les cas, les trous de suspension 32 sont alignés avec les logements traversants 11, Lesquels sont également disposés à l'aplomb exact des champs magnétiques localisés 18. Un autre avantage de la construction ou structure rr.ndulaire, adoptée pour La réalisation de l'appareil de support et de chauffage, réside dans la possibilité d'adapter, aisément et rapidement, Le bloc chauffant 10 sur une embase 17 et de choisir ainsi, très précisément, les caractéristiques de cette dernière en fonction des paramètres d'agitation devant être imposés aux échantillons 6. Une telle possibilité d'adaptation peut également être envisagée dans le sens inverse, c'est-à-dire en adaptant sur une embase 17, de caractéristiques d'agitation déterminées, un bloc chauffant 10 possédant des moyens de montée et de régulation en température selon un seuil différent. Une autre caractéristique de L'objet de l'invention réside dans La structure modulaire simple de fabrication et d'adaptation permettant de réaliser un appareil performant à faible coût, à caractéristiques modulables.Another advantage of the structure according to the invention lies in the implementation of relative centering means between the base 17 and the block 10 and between the latter and the cowling 25. Thus, in all cases, the suspension holes 32 are aligned with the through housings 11, which are also arranged at the exact plumb of the localized magnetic fields 18. Another advantage of the construction or circular structure, adopted for the realization of the support and heating apparatus, resides in the possibility of adapting, easily and quickly, the heating block 10 on a base 17 and thus choosing, very precisely, the characteristics of the latter as a function of the agitation parameters to be imposed on the samples 6. Such a possibility coping can also be considered in the opposite direction, that is to say by adapting to a base 17, determined agitation characteristics, a heating block 10 having means for raising and regulating the temperature according to a different threshold. Another characteristic of the object of the invention lies in the simple modular structure of manufacture and adaptation making it possible to produce an efficient device at low cost, with modular characteristics.
La fig. 2 montre que Les trous 32 peuvent être équipés, sur Le dessus de la platine 27, chacun, d'une épingle 35 dont Les branches déformables élastiquement délimitent entre elles un écartement inférieur au diamètre du trou 32. Cette disposition peut être envisagée Lorsque Le trou 32 est exécuté, de même que Le logement 11, pour livrer passage à un récipient 1 comprenant un bulbe de diamètre nettement supérieur à celui du col par Lequel il doit être suspendu, en collaboration avec le bouchon Le fermant.Fig. 2 shows that the holes 32 can be fitted, on the top of the plate 27, each, with a pin 35, the elastically deformable branches of which delimit a spacing less than the diameter of the hole 32. This arrangement can be envisaged when the hole 32 is executed, as is the housing 11, to deliver passage to a container 1 comprising a bulb with a diameter significantly greater than that of the neck by which it must be suspended, in collaboration with the closing cap.
POSSIBILITE D'APPLICATION INDUSTRIELLE :POSSIBILITY OF INDUSTRIAL APPLICATION:
L'invention peut être mise en oeuvre dans Le domaine technique de La réaction chimique, du traitement ou de L'analyse d'échantillons et utîLisée en tant qu'appareil de support et de chauffage de récipients de réaction, de traitement ou d'analyse de produits divers.The invention can be implemented in the technical field of chemical reaction, treatment or analysis of samples and used as an apparatus for supporting and heating reaction, treatment or analysis vessels of various products.
L'invention n'est pas Limitée à L'exemple décrit et représenté, car diverses modifications peuvent y être apportées sans sortir de son cadre. The invention is not limited to the example described and shown, since various modifications can be made without departing from its scope.

Claims

REVENDICATIONS :CLAIMS:
1 - Appareil de support et de chauffage de récipients (1) fermés par un bouchon (5), du type comprenant un bloc chauffant (10) pourvu de moyens de chauffage (14) et délimitant au moins un logement (11) de réception d'un récipient suspendu par son bouchon sur une plaque superposée au bloc, caractérisé en ce que ledit bloc chauffant :1 - Apparatus for supporting and heating containers (1) closed by a plug (5), of the type comprising a heating block ( 10 ) provided with heating means (14) and delimiting at least one housing (11) for receiving '' a container suspended by its cap on a plate superimposed on the block, characterized in that said heating block:
- est monté sur une embase (17) par des pieds entretoises isolants (15) ménageant un intervalle (19) séparant La base (12) du bloc du dessus (16) de l'embase, laquelle est constituée par un bloc pourvu d'au moins un moyen (18) d'agitation magnétique à champ tournant statique ou dynamique, disposé en coïncidence avec le Logement,- is mounted on a base (17) by insulating spacer feet (15) providing a gap (19) separating the base (12) of the top block (16) of the base, which is constituted by a block provided with at least one magnetic stirring means (18) with a static or dynamic rotating field, arranged in coincidence with the housing,
- délimite au moins un logement (11) traversant s'ouvrant dans l'intervalle (19),- delimits at least one through housing (11) opening in the interval (19),
- est recouvert d'un capotage (25) qui forme une platine (26) superposée à distance du bloc chauffant (10) et pourvue d'au moins un trou- is covered with a cover (25) which forms a plate (26) superimposed at a distance from the heating block (10) and provided with at least one hole
(32) placé à l'aplomb du Logement (11), et qui est adapté sur Le bloc chauffant (10) par au moins des cales isolantes (29), la hauteur du bloc chauffant (10) étant définie pour que le récipient (1) repose par son bouchon sur le capotage et pour que son fond affleure la base du bloc.(32) placed directly above the Housing (11), and which is adapted to the heating block ( 10) by at least insulating shims (29), the height of the heating block (10) being defined so that the container ( 1) rests by its cap on the cowling and so that its bottom is flush with the base of the block.
2 - Appareil selon la revendication 1, caractérisé en ce que le capotage (25) est adapté sur Le bloc (10) par des moyens (30,.31) de centrage du trou (32) de la platine avec l'axe du logement traversant (11).2 - Apparatus according to claim 1, characterized in that the shield (25) is fitted on the block (10) by means (30, 31.) For centering of the hole (32) of the plate with the axis of the housing crossing (11).
3 - Appareil selon La revendication 2, caractérisé en ce que les moyens de centrage comprennent des glissières latérales (30) et des butées transversales (31) coopérant avec l'embase. 4 - Appareil selon la revendication 3, caractérisé en ce que Les glissières et les butées sont portées par une jupe (27) bordant la platine (26) avec Laquelle elle constitue Le capotage (25).3 - Apparatus according to claim 2, characterized in that the centering means comprise lateral slides (30) and transverse stops (31) cooperating with the base. 4 - Apparatus according to claim 3, characterized in that that the slides and the stops are carried by a skirt (27) bordering the plate (26) with which it constitutes the cowling (25).
5 - Appareil selon La revendication 4, caractérisé en ce que Les glissières et les butées sont en matière isolante.5 - Apparatus according to claim 4, characterized in that the slides and the stops are made of insulating material.
6 - Appareil selon la revendication 1 ou 2, caractérisé en ce que le capotage (25) est traversé par une sonde (35) de mesure de température montée dans un puits aménagé dans le bloc chauffant. 7 - Appareil selon la revendication 1, caractérisé en ce que les pieds isolants (15) du bloc chauffant coopèrent avec des moyens de centrage (20) complémentaires portés par le dessus de l'embase.6 - Apparatus according to claim 1 or 2, characterized in that the cover (25) is traversed by a probe (35) for temperature measurement mounted in a well arranged in the heating block. 7 - Apparatus according to claim 1, characterized in that the insulating feet (15) of the heating block cooperate with centering means (20) complementary carried by the top of the base.
8 - Appareil selon La revendication 1 ou 6, caractérisé en ce que le capotage (25) emboîte le bloc chauffant et, en partie au moins, l'embase et forme une barrière thermique.8 - Apparatus according to claim 1 or 6, characterized in that the cover (25) fits the heating block and, at least in part, the base and forms a thermal barrier.
9 - Appareil selon l'une des revendications 1, 2, 6 ou 8, caractérisé en ce que Le capotage (25) comporte une platine délimitant au moins un trou (32) traversé par les branches d'une épingle élastique (35). 9 - Apparatus according to one of claims 1, 2, 6 or 8, characterized in that The cowling (25) comprises a plate defining at least one hole (32) crossed by the branches of an elastic pin (35).
PCT/FR1989/000207 1988-05-03 1989-04-28 Equipment for supporting and heating recipients for the reaction, treatment or analysis of various products WO1989010789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806191A FR2630928B1 (en) 1988-05-03 1988-05-03 APPARATUS FOR SUPPORTING AND HEATING REACTION, TREATMENT OR ANALYSIS CONTAINERS OF VARIOUS PRODUCTS
FR88/06191 1988-05-03

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WO1989010789A1 true WO1989010789A1 (en) 1989-11-16

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FR (1) FR2630928B1 (en)
WO (1) WO1989010789A1 (en)

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CA2253164A1 (en) * 1997-11-14 1999-05-14 Edward Michael Sioma Apparatus and method used in multiple, simultaneous synthesis of general compounds
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GB9726482D0 (en) * 1997-12-15 1998-02-11 Kalibrant Limited Method and apparatus for chemical synthesis
US6258323B1 (en) 1998-11-16 2001-07-10 Rohm And Haas Company Apparatus and method used in multiple, simultaneous synthesis of general compounds
WO2007020864A1 (en) * 2005-08-17 2007-02-22 Sibata Scientific Technology Ltd. Organic synthesizer
CN109395798B (en) * 2018-12-20 2020-11-24 江苏爱科固体废物处理有限公司 Chemical industry is test-tube rack that can monitor temperature for experiments

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WO2003029397A1 (en) * 2001-10-02 2003-04-10 Stratagene Side-wall heater for thermocycler device
US7459302B2 (en) 2001-10-02 2008-12-02 Stratagene California Side-wall heater for thermocycler device

Also Published As

Publication number Publication date
EP0415973A1 (en) 1991-03-13
FR2630928B1 (en) 1991-09-06
FR2630928A1 (en) 1989-11-10

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