WO2010149882A1 - Method for checking a fog injector - Google Patents
Method for checking a fog injector Download PDFInfo
- Publication number
- WO2010149882A1 WO2010149882A1 PCT/FR2010/000467 FR2010000467W WO2010149882A1 WO 2010149882 A1 WO2010149882 A1 WO 2010149882A1 FR 2010000467 W FR2010000467 W FR 2010000467W WO 2010149882 A1 WO2010149882 A1 WO 2010149882A1
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- WO
- WIPO (PCT)
- Prior art keywords
- injector
- vein
- cylindrical
- pin
- flow path
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/25—Rooms in buildings, passenger compartments
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37339—Eccentricity, cylindricity, circularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37617—Tolerance of form, shape or position
Definitions
- the present invention relates to a method of manufacturing and controlling a fractionation injector, in particular for equipping injection devices of the type used on decontamination devices by misting a disinfectant on surfaces to be treated. , and especially on the walls of a room. It relates more particularly to a method of controlling the inclination of the axis of a bore of a workpiece.
- the size of the drops formed is relatively high (of the order of 80 to 200 microns for an air flow rate of 3 to 5 ml of air per minute), so that these drops are deposited by simple effect of gravity on the surfaces close to their place of spraying, which, of course, is not satisfactory to the extent that surfaces remote from the spray nozzle are untreated.
- the improved fractionation required to obtain such a dry mist may according to this patent be advantageously obtained by means of an ultrasonic "resonator" which is disposed downstream of the outlet of the injector, so that the output flow of it is subjected to a fragmentation forming a kind of "diffraction" of the drops, having the effect of making them even smaller, which makes it possible to further increase the homogeneity of their distribution.
- Such an injection device if it allows to distribute regularly throughout the volume of a local fine droplets of the treatment product, however, has certain disadvantages.
- the ultrasonic resonator disposed downstream of the outlet of the injector must of course be held in position by a support connected to the spraying device.
- this support had the effect of causing an uncontrolled diffusion of the spray jet output that harmed the good regularity thereof.
- the support is as thin as possible, but this makes it particularly vulnerable to shocks and other stresses to which it is subjected during use, especially as its position at the top of the device further increases this vulnerability.
- the fractionation injector comprises a main vein successively consisting of a convergent axial vein intended to receive a flow of pressurized gas, a cylindrical vein, and a diverging axial vein, the injector further comprising at least one vein secondary, substantially transverse, intended to admit a flow of treatment liquid, and which opens downstream of the convergent vein, this injector being characterized in that the axis of the cylindrical vein is angularly offset relative to the longitudinal axis of veins convergent and divergent.
- US Patent 2470755 has proposed a gauge to verify that the diameter of a bore is between a minimum value and a maximum value.
- this gauge comprises two control zones, namely a zone of minimum diameter capable of penetrating into the bore and a zone of maximum diameter able not to penetrate into the bore; these two areas being joined by a frustoconical portion intended to facilitate the withdrawal of the gauge.
- Such a gauge if it allows an easy and precise control of the diameter of a bore of a mechanical part, is however not provided to ensure the control of the inclination of the axis of the latter relative to the rest. of the room.
- the object of the present invention is to remedy such a deficiency by proposing a method making it possible to easily and quickly carry out a control of the good inclination and the good diameter of the cylindrical vein.
- the subject of the present invention is thus a method for manufacturing and controlling a fractionation injector, in particular for a venturi-type misting device, of the type comprising at least one main vein successively constituted by a convergent axial vein, a cylindrical vein, and a divergent axial vein, the axis of the cylindrical vein being angularly offset relative to the longitudinal axis of the convergent and divergent veins, characterized in that it comprises a step of controlling the cylindrical vein consisting of at :
- a pin In order to obtain a better accuracy, a pin will be used whose length will be greater than that of the injector.
- Such an embodiment makes it possible to position the pin in the cylindrical vein so that its two ends protrude from the injector, which makes it possible to perform a double control of the position, in particular the angular position, of the vein.
- the control pin can also be used to perform the control of the diameter of the cylindrical vein.
- the body thereof will advantageously be divided into two parts of slightly different diameters, namely a first portion and a second portion of shorter length; the diameter difference representing the allowable adjustment tolerance.
- the part of greater length will preferably have a diameter representing the value of the maximum diameter minus the value of the tolerance, and the diameter of the shortest part will be equal to the maximum value of the diameter. It is understood in these conditions that the diameter of the cylindrical vein will be correct and acceptable if the portion of the smaller diameter pin is fit to enter it and if the larger diameter part can enter.
- FIG. 1 is a view in longitudinal and transverse section of an injector according to the invention
- FIG. 2 is a view in longitudinal and transverse section of the injector represented in FIG. 1, a control pin being in place in the bore forming the cylindrical vein
- FIGS. 3 and 4 are views in longitudinal and transverse section. representing two alternative embodiments of the control step of the injector shown in FIGS. 1 and 2.
- FIG. 1 shows a fractionation injector 1 according to the invention, which is formed of a cylindrical body of longitudinal axis xx '.
- the injector 1 is traversed right through by a venturi type longitudinal flow vein, comprising three parts, namely a convergent 3, followed by a cylindrical portion 5 which is extended by a diverging opening 7 to the outside .
- the conicity of the convergent 3 is of the order of 46 ° and its inlet has a diameter of 4.78 mm.
- the cylindrical portion 5 extending the convergent 3 has a diameter of 1.3 mm and the diverging 7 extending thereof has a taper of 15 ° and an outlet of 2.27 mm.
- the convergent 3 and the divergent 7 have their respective axes which merge with the longitudinal axis xx 'of the injector 1.
- the cylindrical portion 5 has its axis zz' which is angularly offset with respect to the longitudinal axis xx ', that is to say that it forms with it an angle ⁇ whose value, in the present embodiment of the invention, is preferably of the order of 4 ° but which can be understood, according to the uses, between 2 ° and 8 °.
- the point 0 from which the relative rotation of the axis zz 'of the cylindrical portion 5 with respect to the longitudinal axis xx' is located is substantially in the middle of the cylindrical portion 5 and, in the embodiment of illustrated, at a distance of 4.95 mm from the upstream face Ib of the injector 1.
- transverse channels 9 of which there are four in the present embodiment, but one could also use a single channel or, on the contrary, a larger number of channels. .
- These channels 9, which open into the main stream downstream of the cylindrical portion 5, are in communication with supply and flow control means of the liquid that is to be dispensed.
- the method of manufacturing the injector 1 comprises a step of controlling the angle of inclination ⁇ of the cylindrical vein 5 with respect to the longitudinal axis xx 'of the insert 1.
- a pin 8 is introduced into the vein 5, the diameter of which is sufficiently close to the diameter of the latter so that it can be slidably mounted in said vein 5. has the pin 8 so that it protrudes by at least one of its ends of the insert 1.
- This part, on the right in Figure 2 in the present example, is thus accessible, and its relative positioning relative to the insert and in particular with respect to the longitudinal axis xx 'thereof, can be easily determined by suitable measuring devices, such as comparator, palmer, caliper, profile projector etc ...
- the periphery S of the injector 1 and the corresponding part T of the pin 8 can be used as a reference and thus the value of the angle As shown in FIG. 2, the surface of the cross section of the insert and the surface t can also be used as the reference surface. from the right section of pin 8.
- the pin 8 can also according to the invention be used to carry out the control of the diameter of the cylindrical vein 5.
- the body thereof will advantageously be divided into two parts of diameters slightly different, namely a portion 8a and a portion 8b of shorter length; the diameter difference representing the allowable adjustment tolerance ⁇ _e.
- the part 8a of greater length will have a diameter representing the value of the maximum diameter d - the value of the tolerance ⁇ e_ is: d- ⁇ e and the diameter of the part 8b will be equal to the maximum value d.
- part 8a will correspond to the lower adjustment tolerance and part 8b will correspond to the higher adjustment tolerance. Under these conditions when a vein 5 to be controlled will comply with the desired manufacturing tolerances part 8a will be able to enter the vein 5 and the other part 8b will not be able to enter it.
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- Nozzles (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Procédé de contrôle d'un injecteur de brumisation Method of controlling a misting injector
La présente invention concerne un procédé de fabrication et de contrôle d'un injecteur à fractionnement, notamment destiné à équiper des dispositifs d'injection du type de ceux utilisés sur les appareils de décontamination par brumisation d'un produit de désinfection sur des surfaces à traiter, et notamment sur les parois d'un local. Elle concerne plus particulièrement un procédé de contrôle de l'inclinaison de l'axe d'un alésage d'une pièce.The present invention relates to a method of manufacturing and controlling a fractionation injector, in particular for equipping injection devices of the type used on decontamination devices by misting a disinfectant on surfaces to be treated. , and especially on the walls of a room. It relates more particularly to a method of controlling the inclination of the axis of a bore of a workpiece.
On sait que les agents bactériens qui sont la cause de la contamination et qui sont en suspension dans l'air d'un local ont tendance à se sédimenter sur les différentes surfaces et objets contenus dans celui-ci. On sait par ailleurs, qu'à l'inverse, les agents bactériens qui se développent sur les objets et sur les parois d'un local, (par exemple des salles d'opération, des salles blanches ou de soins divers etc..) ont tendance à entrer en suspension dans l'atmosphère. Ces locaux se trouvent ainsi dans une situation d'échange permanent entre les parois et objets d'une part et l'atmosphère d'autre part.It is known that the bacterial agents that cause the contamination and are suspended in the air of a room tend to sediment on the various surfaces and objects contained therein. We also know that, conversely, bacterial agents that develop on the objects and on the walls of a room, (for example operating rooms, clean rooms or various care etc. ..) tend to suspend in the atmosphere. These premises are thus in a situation of permanent exchange between the walls and objects on the one hand and the atmosphere on the other hand.
On a proposé d'assurer la décontamination globale, c'est-à-dire à la fois de l'atmosphère et des parois et objets divers d'un local, en pulvérisant dans le volume de celui-ci un produit désinfectant. On a constaté que ce type de traitement par projection présentait plusieurs inconvénients.It has been proposed to ensure the overall decontamination, that is to say of both the atmosphere and the walls and various objects of a room, by spraying in the volume of the latter a disinfectant product. This type of projection treatment has been found to have several disadvantages.
De première part, la taille des gouttes formées est relativement élevée (de l'ordre de 80 à 200 μm pour un débit d'air de 3 à 5 ml d'air par minute), si bien que ces gouttes viennent se déposer par simple effet de gravité sur les surfaces proches de leur lieu de pulvérisation, ce qui, bien entendu, n'est pas satisfaisant dans la mesure où les surfaces éloignées de l'injecteur de pulvérisation se trouvent exemptes de traitement.Firstly, the size of the drops formed is relatively high (of the order of 80 to 200 microns for an air flow rate of 3 to 5 ml of air per minute), so that these drops are deposited by simple effect of gravity on the surfaces close to their place of spraying, which, of course, is not satisfactory to the extent that surfaces remote from the spray nozzle are untreated.
De seconde part, en raison de la grosseur des gouttes, celles-ci ont tendance à se regrouper et à former en surface des parois et objets du local un film humide, voire même des flaques de liquide.Secondly, because of the size of the drops, they tend to cluster and form on the surface of the walls and objects of the local a wet film, or even puddles of liquid.
On a proposé dans le brevet FR 2 859 650 au nom de la demanderesse, d'améliorer le fractionnement des gouttes pulvérisées en faisant appel à un dispositif d'injection permettant d'obtenir de fines gouttelettes dont les dimensions sont de l'ordre de 2 μm à 20 μm et qui présentent ainsi la propriété de se trouver en suspension dans l'ensemble du volume du local et de se déposer sur les parois et les objets contenus dans celui-ci sans s'agglomérer entre-elles si bien qu'elles forment un film continu ; le brouillard ainsi généré étant dénommé « brouillard sec ».It has been proposed in patent FR 2 859 650 in the name of the applicant, to improve the fractionation of sprayed drops by using an injection device for obtaining fine droplets whose dimensions are of the order of 2 micrometers to 20 microns and thus have the property of being suspended in the entire volume of the room and to be deposited on the walls and objects contained therein without agglomerating them so that they form a continuous film; the fog thus generated being called "dry fog".
Le fractionnement amélioré nécessaire à l'obtention d'un tel brouillard sec peut suivant ce brevet être avantageusement obtenu au moyen d'un « résonateur » ultrasonore qui est disposé en aval de la sortie de l'injecteur, de façon que le flux en sortie de celui-ci se trouve soumis à une fragmentation formant une sorte de « diffraction » des gouttes, ayant pour effet de les rendre encore plus petites ce qui permet d'augmenter encore l'homogénéité de leur distribution.The improved fractionation required to obtain such a dry mist may according to this patent be advantageously obtained by means of an ultrasonic "resonator" which is disposed downstream of the outlet of the injector, so that the output flow of it is subjected to a fragmentation forming a kind of "diffraction" of the drops, having the effect of making them even smaller, which makes it possible to further increase the homogeneity of their distribution.
Un tel dispositif d'injection, s'il permet de distribuer de façon régulière dans tout le volume d'un local de fines gouttelettes du produit de traitement, présente cependant certains inconvénients.Such an injection device, if it allows to distribute regularly throughout the volume of a local fine droplets of the treatment product, however, has certain disadvantages.
Tout d'abord, le résonateur ultrasonore disposé en aval de la sortie de l'injecteur doit bien entendu être maintenu en position par un support lié au dispositif de pulvérisation. Or, il a été constaté que ce support avait pour effet de provoquer une diffusion non contrôlée du jet de pulvérisation en sortie qui nuisait à la bonne régularité de celle-ci. Afin de minimiser cet inconvénient on a fait en sorte que le support soit le plus fin possible, mais ceci le rend particulièrement vulnérable aux chocs et autres sollicitations auxquels il est soumis en cours d'utilisation, d'autant que sa position en tête de l'appareil accroît encore cette vulnérabilité.First, the ultrasonic resonator disposed downstream of the outlet of the injector must of course be held in position by a support connected to the spraying device. However, it was found that this support had the effect of causing an uncontrolled diffusion of the spray jet output that harmed the good regularity thereof. In order to minimize this inconvenience, it has been ensured that the support is as thin as possible, but this makes it particularly vulnerable to shocks and other stresses to which it is subjected during use, especially as its position at the top of the device further increases this vulnerability.
C'est pourquoi la demanderesse a proposé dans la demande FR 09.00134 un autre moyen permettant de créer un fractionnement du jet de pulvérisation permettant de générer un brouillard sec et de le distribuer de façon homogène et régulière dans tout le volume d'un local sans qu' il soit nécessaire de faire appel à un résonateur ultrasonore.That is why the Applicant has proposed in the application FR 09.00134 another means for creating a splitting of the spray jet to generate a dry mist and distribute it evenly and evenly throughout the volume of a room without qu it is necessary to use an ultrasonic resonator.
Suivant cette invention l' injecteur à fractionnement, comporte une veine principale successivement constituée d'une veine axiale convergente destinée à recevoir un flux de gaz sous pression, une veine cylindrique, et une veine axiale divergente, ledit injecteur comportant par ailleurs au moins une veine secondaire, sensiblement transversale, destinée à admettre un flux de liquide de traitement, et qui débouche en aval de la veine convergente, cet injecteur étant caractérisé en ce que l'axe de la veine cylindrique est décalé angulairement par rapport à l'axe longitudinal des veines convergente et divergente.According to the invention, the fractionation injector comprises a main vein successively consisting of a convergent axial vein intended to receive a flow of pressurized gas, a cylindrical vein, and a diverging axial vein, the injector further comprising at least one vein secondary, substantially transverse, intended to admit a flow of treatment liquid, and which opens downstream of the convergent vein, this injector being characterized in that the axis of the cylindrical vein is angularly offset relative to the longitudinal axis of veins convergent and divergent.
On comprend que la réalisation et le contrôle de la bonne exécution de ces veines d'écoulement, et notamment de la veine cylindrique centrale est particulièrement délicate à mettre en oeuvre notamment en raison d'une part des faibles diamètres concernés et d'autre part de l'inclinaison de cette veine par rapport à l'axe longitudinal de l' injecteur, plus spécifiquement au niveau du contrôle de l'angle d'inclinaison de cette veine par rapport à l'axe longitudinal de l'injecteur.It is understood that the realization and the control of the good execution of these flow veins, and in particular of the central cylindrical vein, is particularly difficult to implement in particular because of the small diameters involved and on the one hand the inclination of this vein relative to the longitudinal axis of the injector, more specifically at the level control of the inclination angle of this vein relative to the longitudinal axis of the injector.
On a proposé dans le brevet US 2470755 une jauge permettant vérifier que le diamètre d'un alésage est compris entre une valeur minimale et une valeur maximale. A cet effet cette jauge comporte deux zones de contrôle, à savoir une zone de diamètre minimal apte à pénétrer dans l'alésage et une zone de diamètre maximal apte à ne pas pénétrer dans l'alésage ; ces deux zones étant réunies par une partie tronconique destinée à faciliter le retrait de la jauge. Une telle jauge, si elle autorise un contrôle aisé et précis du diamètre d'un alésage d'une pièce mécanique, n'est cependant pas prévue pour assurer le contrôle de l'inclinaison de l'axe de celle-ci par rapport au reste de la pièce.US Patent 2470755 has proposed a gauge to verify that the diameter of a bore is between a minimum value and a maximum value. For this purpose this gauge comprises two control zones, namely a zone of minimum diameter capable of penetrating into the bore and a zone of maximum diameter able not to penetrate into the bore; these two areas being joined by a frustoconical portion intended to facilitate the withdrawal of the gauge. Such a gauge, if it allows an easy and precise control of the diameter of a bore of a mechanical part, is however not provided to ensure the control of the inclination of the axis of the latter relative to the rest. of the room.
La présente invention a pour but de remédier à une telle lacune en proposant un procédé permettant de réaliser facilement et rapidement un contrôle de la bonne inclinaison et du bon diamètre de la veine cylindrique.The object of the present invention is to remedy such a deficiency by proposing a method making it possible to easily and quickly carry out a control of the good inclination and the good diameter of the cylindrical vein.
La présente invention a ainsi pour objet un procédé de fabrication et de contrôle d'un injecteur à fractionnement, notamment pour dispositif de brumisation par effet venturi, du type comportant au moins une veine principale successivement constituée d' une veine axiale convergente, d'une veine cylindrique, et d'une veine axiale divergente, l'axe de la veine cylindrique étant décalé angulairement par rapport à l'axe longitudinal des veines convergente et divergente, caractérisé en ce qu' il comporte une étape de contrôle de la veine cylindrique consistant à :The subject of the present invention is thus a method for manufacturing and controlling a fractionation injector, in particular for a venturi-type misting device, of the type comprising at least one main vein successively constituted by a convergent axial vein, a cylindrical vein, and a divergent axial vein, the axis of the cylindrical vein being angularly offset relative to the longitudinal axis of the convergent and divergent veins, characterized in that it comprises a step of controlling the cylindrical vein consisting of at :
- introduire dans ladite veine cylindrique une broche calibrée au diamètre de celle-ci,introducing into said cylindrical vein a pin calibrated to the diameter thereof,
- positionner la broche longitudinalement dans la veine cylindrique de façon qu'au moins une extrémité de celle-ci dépasse de l'injecteur, contrôler le positionnement angulaire de la dite extrémité.positioning the spindle longitudinally in the cylindrical vein so that at least one end thereof extends beyond the injector, check the angular positioning of the said end.
De façon à obtenir une meilleure précision on utilisera une broche dont la longueur sera supérieure à celle de 1' injecteur .In order to obtain a better accuracy, a pin will be used whose length will be greater than that of the injector.
Un tel mode de mise en oeuvre permet de positionner la broche dans la veine cylindrique de façon que ses deux extrémités dépassent de l' injecteur ce qui permet d'effectuer un double contrôle de position, notamment angulaire, de la veine.Such an embodiment makes it possible to position the pin in the cylindrical vein so that its two ends protrude from the injector, which makes it possible to perform a double control of the position, in particular the angular position, of the vein.
La broche de contrôle pourra par ailleurs être utilisée pour réaliser le contrôle du diamètre de la veine cylindrique. A cet effet le corps de celle-ci sera avantageusement divisé en deux parties de diamètres légèrement différents, à savoir une première partie et une seconde partie de plus faible longueur ; la différence de diamètre représentant la tolérance d'ajustement admissible. La partie de plus grande longueur aura préférentiellement un diamètre représentant la valeur du diamètre maximal moins la valeur de la tolérance, et le diamètre de la partie la plus courte sera égal à la valeur maximale du diamètre. On comprend dans ces conditions que le diamètre de la veine cylindrique sera correct et acceptable si la partie de la broche de plus faible diamètre est apte à entrer dans celle-ci et si la partie de plus fort diamètre ne peut y entrer.The control pin can also be used to perform the control of the diameter of the cylindrical vein. For this purpose the body thereof will advantageously be divided into two parts of slightly different diameters, namely a first portion and a second portion of shorter length; the diameter difference representing the allowable adjustment tolerance. The part of greater length will preferably have a diameter representing the value of the maximum diameter minus the value of the tolerance, and the diameter of the shortest part will be equal to the maximum value of the diameter. It is understood in these conditions that the diameter of the cylindrical vein will be correct and acceptable if the portion of the smaller diameter pin is fit to enter it and if the larger diameter part can enter.
Suivant l'invention on pourra contrôler le décalage angulaire de la veine angulaire au moyen d'un projecteur de profil et par référence à l'extrémité de la broche dépassant de l' injecteur. Pour ce faire on pourra utiliser, en tant que surface de référence, la surface périphérique de l' insert et/ou la surface de la section droite de celui- ci, ainsi que la surface périphérique de la broche et/ou la surface de la section droite de cette dernière. On décrira ci-après, à titre d'exemple non limitatif, une forme d'exécution de la présente invention, en référence au dessin annexé sur lequel :According to the invention, it will be possible to control the angular offset of the angular vein by means of a profile projector and by reference to the end of the spindle protruding from the injector. To do this, the peripheral surface of the insert and / or the surface of the cross-section of the insert and the peripheral surface of the spindle and / or the surface of the spindle can be used as the reference surface. cross section of the latter. An embodiment of the present invention will be described hereinafter by way of nonlimiting example, with reference to the appended drawing in which:
- la figure 1 est une vue en coupe longitudinale et transversale d'un injecteur suivant l'invention,FIG. 1 is a view in longitudinal and transverse section of an injector according to the invention,
- la figure 2 est une vue en coupe longitudinale et transversale de l' injecteur représenté sur la figure 1 une broche de contrôle étant en place dans l'alésage formant la veine cylindrique, les figures 3 et 4 sont des vues en coupe longitudinale et transversale représentant deux variantes de mise en oeuvre de l'étape de contrôle de l' injecteur représenté sur les figures 1 et 2.FIG. 2 is a view in longitudinal and transverse section of the injector represented in FIG. 1, a control pin being in place in the bore forming the cylindrical vein, FIGS. 3 and 4 are views in longitudinal and transverse section. representing two alternative embodiments of the control step of the injector shown in FIGS. 1 and 2.
On a représenté sur la figure 1 un injecteur à fractionnement 1 suivant l'invention, qui est formé d'un corps cylindrique d'axe longitudinal xx' . L' injecteur 1 est traversé de part en part par une veine d'écoulement longitudinale de type venturi, comportant trois parties, à savoir un convergent 3, suivi d'une partie cylindrique 5 qui se prolonge par un divergent 7 débouchant sur l' extérieur.FIG. 1 shows a fractionation injector 1 according to the invention, which is formed of a cylindrical body of longitudinal axis xx '. The injector 1 is traversed right through by a venturi type longitudinal flow vein, comprising three parts, namely a convergent 3, followed by a cylindrical portion 5 which is extended by a diverging opening 7 to the outside .
Dans le présent mode de mise en œuvre de l' invention la conicité du convergent 3 est de l'ordre de 46° et son orifice d'entrée a un diamètre de 4,78 mm. La partie cylindrique 5 prolongeant le convergent 3 a un diamètre de 1,3 mm et le divergent 7 prolongeant celui-ci a une conicité de 15° et un orifice de sortie de 2,27mm.In the present embodiment of the invention the conicity of the convergent 3 is of the order of 46 ° and its inlet has a diameter of 4.78 mm. The cylindrical portion 5 extending the convergent 3 has a diameter of 1.3 mm and the diverging 7 extending thereof has a taper of 15 ° and an outlet of 2.27 mm.
Par ailleurs le convergent 3 et le divergent 7 ont leurs axes respectifs qui se confondent avec l'axe longitudinal xx' de l' injecteur 1. La partie cylindrique 5 quant à elle a son axe zz' qui est décalé angulairement par rapport à l'axe longitudinal xx' c'est-à-dire qu'il forme avec celui- ci un angle α dont la valeur, dans le présent mode de mise en œuvre de l'invention, est préférentiellement de l'ordre de 4° mais qui peut être compris, en fonction des utilisations, entre 2° et 8°. Le point 0 à partir duquel s'effectue la rotation relative de l'axe zz' de la partie cylindrique 5 par rapport à l'axe longitudinal xx' se situe sensiblement au milieu de la partie cylindrique 5 et, dans le mode de mise en œuvre représenté, à une distance de 4,95 mm de la face amont Ib de l'injecteur 1.Moreover, the convergent 3 and the divergent 7 have their respective axes which merge with the longitudinal axis xx 'of the injector 1. The cylindrical portion 5 has its axis zz' which is angularly offset with respect to the longitudinal axis xx ', that is to say that it forms with it an angle α whose value, in the present embodiment of the invention, is preferably of the order of 4 ° but which can be understood, according to the uses, between 2 ° and 8 °. The point 0 from which the relative rotation of the axis zz 'of the cylindrical portion 5 with respect to the longitudinal axis xx' is located is substantially in the middle of the cylindrical portion 5 and, in the embodiment of illustrated, at a distance of 4.95 mm from the upstream face Ib of the injector 1.
Le corps de l'injecteur 1 est traversé par des canaux transversaux 9, au nombre de quatre dans le présent mode de mise en œuvre, mais on pourrait également faire appel à un canal unique ou, au contraire, à un plus grand nombre de canaux. Ces canaux 9, qui débouchent dans la veine principale en aval de la partie cylindrique 5, sont en communication avec des moyens d'alimentation et de contrôle de débit du liquide que l'on souhaite distribuer.The body of the injector 1 is traversed by transverse channels 9, of which there are four in the present embodiment, but one could also use a single channel or, on the contrary, a larger number of channels. . These channels 9, which open into the main stream downstream of the cylindrical portion 5, are in communication with supply and flow control means of the liquid that is to be dispensed.
Suivant l' invention, le procédé de fabrication de l'injecteur 1 comporte une étape de contrôle de l'angle d'inclinaison α de la veine cylindrique 5 par rapport à l'axe longitudinal xx' de l' insert 1.According to the invention, the method of manufacturing the injector 1 comprises a step of controlling the angle of inclination α of the cylindrical vein 5 with respect to the longitudinal axis xx 'of the insert 1.
En raison des faibles dimensions et de la disposition de la veine 5 les mesures de l'orientation de son axe zz' sont difficiles à réaliser. Suivant l'invention, ainsi que représenté sur la figure 2, on introduit dans la veine 5 une broche 8 dont le diamètre est suffisamment proche du diamètre de celle-ci pour qu'elle puisse être montée à coulissement dans ladite veine 5. Puis on dispose la broche 8 de façon qu'elle dépasse par au moins l'une de ses extrémités de l' insert 1. Cette partie, à droite sur la figure 2 dans le présent exemple, se trouve ainsi accessible, et son positionnement relatif par rapport à l' insert et notamment par rapport à l'axe longitudinal xx' de celui-ci, peut être facilement déterminé par des appareils de mesure appropriés, tels que comparateur, palmer, pied à coulisse, projecteur de profil etc ... Dans le cas d'une utilisation d'un projecteur de profil on peut ainsi par exemple prendre comme référence la périphérie S de l'injecteur 1 et la partie correspondante T de la broche 8 et contrôler ainsi la valeur de l'angle α ainsi que représenté sur la figure 2. On peut également prendre comme surface de référence la surface s de la section droite de l' insert et la surface t. de la section droite de la broche 8.Because of the small dimensions and the disposition of the vein 5 the measurements of the orientation of its axis zz 'are difficult to achieve. According to the invention, as shown in FIG. 2, a pin 8 is introduced into the vein 5, the diameter of which is sufficiently close to the diameter of the latter so that it can be slidably mounted in said vein 5. has the pin 8 so that it protrudes by at least one of its ends of the insert 1. This part, on the right in Figure 2 in the present example, is thus accessible, and its relative positioning relative to the insert and in particular with respect to the longitudinal axis xx 'thereof, can be easily determined by suitable measuring devices, such as comparator, palmer, caliper, profile projector etc ... In the case of using a profile projector, for example, the periphery S of the injector 1 and the corresponding part T of the pin 8 can be used as a reference and thus the value of the angle As shown in FIG. 2, the surface of the cross section of the insert and the surface t can also be used as the reference surface. from the right section of pin 8.
La précision de ce contrôle peut encore être améliorée en effectuant celui-ci aux deux extrémités de la broche 8. A cet effet on fera appel à une broche dont la longueur sera plus importante que celle de l' insert de façon que, ainsi que représenté sur la figure 3, elle puisse dépasser de celle-ci à ses deux extrémités.The accuracy of this control can be further improved by performing it at both ends of the pin 8. For this purpose we will use a pin whose length will be greater than that of the insert so that, as shown in Figure 3, it can protrude from it at both ends.
La broche 8 peut également suivant l' invention être utilisée pour réaliser le contrôle du diamètre de la veine cylindrique 5. A cet effet, ainsi que représenté sur la figure 4, le corps de celle-ci sera avantageusement divisé en deux parties de diamètres légèrement différents, à savoir une partie 8a et une partie 8b de plus faible longueur; la différence de diamètre représentant la tolérance d'ajustement δ_e admissible. La partie 8a de plus grande longueur aura un, diamètre représentant la valeur du diamètre maximal d - la valeur de la tolérance δe_ soit : d- δe et le diamètre de la partie 8b sera égal à la valeur maximale d. Ainsi la partie 8a correspondra à la tolérance d'ajustement inférieure et la partie 8b correspondra à la tolérance d'ajustement supérieure. Dans ces conditions lorsqu'une veine 5 à contrôler sera conforme aux tolérances de fabrication souhaitées la partie 8a sera apte à entrer dans la veine 5 et l'autre partie 8b ne sera pas apte à entrer dans celle-ci. The pin 8 can also according to the invention be used to carry out the control of the diameter of the cylindrical vein 5. For this purpose, as shown in FIG. 4, the body thereof will advantageously be divided into two parts of diameters slightly different, namely a portion 8a and a portion 8b of shorter length; the diameter difference representing the allowable adjustment tolerance δ_e. The part 8a of greater length will have a diameter representing the value of the maximum diameter d - the value of the tolerance δe_ is: d- δe and the diameter of the part 8b will be equal to the maximum value d. Thus part 8a will correspond to the lower adjustment tolerance and part 8b will correspond to the higher adjustment tolerance. Under these conditions when a vein 5 to be controlled will comply with the desired manufacturing tolerances part 8a will be able to enter the vein 5 and the other part 8b will not be able to enter it.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0903100 | 2009-06-25 | ||
| FR0903100A FR2947190B1 (en) | 2009-06-25 | 2009-06-25 | METHOD FOR CONTROLLING A FOG INJECTOR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010149882A1 true WO2010149882A1 (en) | 2010-12-29 |
Family
ID=41510834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2010/000467 Ceased WO2010149882A1 (en) | 2009-06-25 | 2010-06-24 | Method for checking a fog injector |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2947190B1 (en) |
| WO (1) | WO2010149882A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470755A (en) | 1945-04-24 | 1949-05-24 | Standard Gage Co Inc | Bore gauge |
| FR2795172A1 (en) * | 1999-06-15 | 2000-12-22 | Le Calibre | Limit gauge for the dimensional control of components within given tolerances providing evidence of wear of such components without the need for expensive measuring devices. |
| EP1500629A1 (en) * | 1995-02-23 | 2005-01-26 | Ecolab Inc. | Method for dispensing a viscous use solution |
| US6854347B2 (en) * | 2001-04-12 | 2005-02-15 | Robert Bosch Gmbh | Measurement of components that have been micro-galvanically produced, using a sample component by means of photoresist webs |
| FR2859650A1 (en) | 2003-09-12 | 2005-03-18 | Gloster Sante Europ | Liquid composition atomization nozzle for disinfecting e.g. hospital, has ultrasonic resonator and resonant chamber coupled to opening of primary channel so that liquid ejected from opening is subjected to ultrasonic field |
-
2009
- 2009-06-25 FR FR0903100A patent/FR2947190B1/en not_active Expired - Fee Related
-
2010
- 2010-06-24 WO PCT/FR2010/000467 patent/WO2010149882A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470755A (en) | 1945-04-24 | 1949-05-24 | Standard Gage Co Inc | Bore gauge |
| EP1500629A1 (en) * | 1995-02-23 | 2005-01-26 | Ecolab Inc. | Method for dispensing a viscous use solution |
| FR2795172A1 (en) * | 1999-06-15 | 2000-12-22 | Le Calibre | Limit gauge for the dimensional control of components within given tolerances providing evidence of wear of such components without the need for expensive measuring devices. |
| US6854347B2 (en) * | 2001-04-12 | 2005-02-15 | Robert Bosch Gmbh | Measurement of components that have been micro-galvanically produced, using a sample component by means of photoresist webs |
| FR2859650A1 (en) | 2003-09-12 | 2005-03-18 | Gloster Sante Europ | Liquid composition atomization nozzle for disinfecting e.g. hospital, has ultrasonic resonator and resonant chamber coupled to opening of primary channel so that liquid ejected from opening is subjected to ultrasonic field |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2947190B1 (en) | 2011-09-02 |
| FR2947190A1 (en) | 2010-12-31 |
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