EP2715202A2 - Flange for connecting a hydraulic or pneumatic pipe of an industrial machine - Google Patents

Flange for connecting a hydraulic or pneumatic pipe of an industrial machine

Info

Publication number
EP2715202A2
EP2715202A2 EP12726058.6A EP12726058A EP2715202A2 EP 2715202 A2 EP2715202 A2 EP 2715202A2 EP 12726058 A EP12726058 A EP 12726058A EP 2715202 A2 EP2715202 A2 EP 2715202A2
Authority
EP
European Patent Office
Prior art keywords
flange
machine
clamping
flange body
face
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.)
Withdrawn
Application number
EP12726058.6A
Other languages
German (de)
French (fr)
Inventor
Jean-Claude BOURICET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENSIVAL MORET FRANCE
Ensival-Moret France
Original Assignee
ENSIVAL MORET FRANCE
Ensival-Moret France
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 ENSIVAL MORET FRANCE, Ensival-Moret France filed Critical ENSIVAL MORET FRANCE
Publication of EP2715202A2 publication Critical patent/EP2715202A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges

Definitions

  • the invention relates generally to the connection of machine piping in industrial installations, particularly in the field of the chemical, oil, mining or other industries.
  • It relates more particularly to the connection of a pipeline of industrial machines of pump, valve, turbine type in a circuit in which they are intended to operate.
  • connection flange can in various applications be used for the connection of a hydraulic pipe, in which a liquid circulates, or a pneumatic pipe, in which a gas flows.
  • Machines of this type are conventionally provided with a body which, at their inlet and / or their outlet through which they must be connected, is provided with a pipe provided with an end cap for its connection. to the rest of the installation.
  • FIG. 1 shows a first example of implementation in which the shell 1 is integral with the pipe 2 connecting the machine to form a flange with a number of axial holes, such as 3 , here eight in number, for clamping the collar 1 against a corresponding glllet, with the interposition of a seal.
  • FIG. 2 Another embodiment of the flange in which the axial holes 3 are replaced by radial notches 4 for the lateral insertion of bolts.
  • the material to be handled is particularly abrasive so that the body of the pump must be made of material sufficiently hard to resist abrasion. It is often, in this case, made of chrome cast iron or Ni-hard cast iron.
  • Such materials are particularly hard to machine and even reach the limit of machinability, so that making hole and notches is a particularly delicate operation.
  • This type of material although resistant to compression forces, is also relatively brittle, so that the flange thus produced is not able to withstand excessive clamping forces.
  • the flange 5 is made in two parts 5a and 5b, generally semicircular and which are intended to be assembled, by bolting, to form a generally annular flange whose inner diameter is smaller than the outer diameter of the shell 1.
  • connection flange of an industrial machine which is intended to bear on a cotlet provided on the body of the machine and to cooperate by clamping with a corresponding connection flange.
  • This flange comprises an annular one-piece flange body and a split locking piece being mounted around a cylindrical portion of the body of the machine, the locking piece comprising a first face intended to bear against a range provided on the llet, and a second face constituting a stop on which bears the flange body during tightening.
  • the first face is generally frustoconical so as to bear against a frustoconical bearing surface of the cup.
  • the second face is flat and extends generally perpendicular to the clamping axis of the flange body on the locking piece.
  • the locking piece comprises, for example, cylindrical inner and outer peripheral surfaces.
  • the flange body has a radial annular shoulder by which it bears, against tightening, against the locking element.
  • the flange body may, for example, have an inner peripheral surface having a first bore having a diameter less than an outer diameter of the locking member and a second bore having a larger diameter than said outer diameter of the locking member, the annular shoulder extending between the first and second bores.
  • the flange body may further be drilled with a set of axial holes for its clamping, for example by means of bolts, on the corresponding flange.
  • the flange body and the locking piece are each made of a single piece of steel.
  • the invention also relates, according to a second aspect, to a method of connecting an industrial machine comprising a machine body provided with a connecting pipe provided with an end cap, by means of a flange such that defined above.
  • This process comprises the steps of:
  • FIGS 1, 2 and 3 which has already been mentioned, illustrate examples of flanges according to the state of the art
  • Figure 4 is a perspective view of a connection flange according to the invention.
  • Figure 5 is an exploded view of the flange of Figure 4.
  • Figure 6 is a sectional view of the flange of Figures 4 and 5, in a plane extending along the general axis of a connecting pipe of the machine.
  • connection flange of an industrial machine With reference to FIGS. 4 to 6, an embodiment of a connection flange of an industrial machine will be described.
  • this flange is intended to ensure the connection of a machine type pump, valve, turbine, in a circuit of an industrial installation.
  • the flange is thus intended to be mounted on the body of the machine, and in particular on an extension of the body forming a pipe 2, fictitiously truncated in FIGS. 4 to 6, which is provided with an end cap 1 .
  • the entire machine body, including the pipe 2 is made of a hard material, type chrome cast iron, or Ni-hard cast iron.
  • the flange in turn, is made in two parts, namely a flange body 6 and a locking piece 7.
  • the flange body 6 has an annular shape and internally delimits a passage P allowing its insertion around the pipe.
  • the smallest diameter internal dl of the flange 6 is greater than the outer diameter d2 of the cotlet 1.
  • the locking piece 7 is made in the form of a split ring. It is intended to come to bear against a range 8 provided at the rear face of the collar 1. It thus constitutes a wedge against which abuts the flange body 6 to tighten.
  • the locking piece 7 has an anterior face 9 facing the collar 1, of a shape complementary to that of the bearing surface 8 of the collar on which it bears.
  • the front end face 9 is generally frustoconical so as to rest on a scope 8 also frustoconical. But, of course, it is not beyond the scope of the invention when the seat 8 is made in the form of an annular seat whose plane extends perpendicularly to the clamping axis or, in other words, to the general axis of the pipe 2.
  • the embodiment in which the anterior face 9 of the locking piece 7 is frustoconical is advantageous insofar as, in this case, the clamping forces applied to the pipe 2 are exerted essentially in compression and can from when easily supported by the column 1.
  • the latter constitutes an abutment against which the flange body 6 bears. It has a generally annular shape extending in a plane perpendicular to the axis of Tightening.
  • the locking piece 7 further comprises an outer peripheral surface 11 and an inner peripheral surface 12 both cylindrical.
  • the inner diameter d3 of the inner peripheral surface 12 is slightly greater than the outer diameter of the pipe 2, while remaining smaller than the outer diameter d2 of the shell 1, while the diameter d4 of the outer peripheral surface is substantially greater than the diameter d2. collar 1, and the diameter d1 of the passage P to form a stop for the flange body 6.
  • the locking piece 7 is preferably made of a single annular piece of steel and is slotted, for mounting, for example by means of a grinder, so as to allow, by deformation, its mounting around the pipe 2.
  • the latter comprises, internally, a first bore 13, which delimits the passage P and whose diameter d1 is greater than the internal diameter d3 and less than the external diameter d4 of the locking piece 7 while remaining greater than the diameter d2 of the collar 1, and a second bore 14, of diameter substantially greater than the external diameter d4 of the part 7.
  • the two bores 13 and 14 thus delimit an annular shoulder 15 which abuts against the posterior end face 10 of the locking piece 7 (FIG. 6).
  • the flange body 6 is further provided with a set of holes, such as 16, here eight in number, but which can be between four and twelve or even sixteen holes for them. large flanges, these holes 16 being intended to receive a clamping screw.
  • the flange body 6 is for example made of steel, so that the drilling operation of the holes 16 is relatively easy to implement. In addition, it can easily withstand the bending forces generated by tightening. This is also the case of the locking piece 7, preferably made of steel.
  • connection of an industrial machine by means of the flange which has just been described is relatively easy to implement.

Abstract

This connecting flange, which is intended to rest against a collar (1) provided on the body of the machine and to engage by clamping with a corresponding connecting flange, comprises a one-piece annular flange body (6) and a split locking piece (7) that is fitted around a cylindrical part of the body of the machine, said locking piece comprising a first face (9) intended to bear against a bearing surface (8) provided on the collar and a second face (10) constituting a thrust face against which the flange body bears upon tightening.

Description

0-5 1 82EXT  0-5 1 82EXT
1 1
Bride de raccordement d' une tuyauterie hydraulique ou Flange for connecting a hydraulic or
pneumatique d'une machine industrielle  pneumatic of an industrial machine
L ' invention concerne, de manière générale, le raccordement d'une tuyauterie de machines dans des installations industrielles, notamment dans le domaine des industries chimique, pétrolière, minière, ou autres. The invention relates generally to the connection of machine piping in industrial installations, particularly in the field of the chemical, oil, mining or other industries.
Elle concerne plus particulièrement le raccordement d'une tuyauterie de machines industrielles de type pompe, vanne, turbine dans un circuit dans lequel elles sont destinées à fonctionner.  It relates more particularly to the connection of a pipeline of industrial machines of pump, valve, turbine type in a circuit in which they are intended to operate.
La bride de raccordement peut, dans diverses applications, être utilisée pour le raccordement d 'une tuyauterie hydraulique, dans laquelle circule un liquide, ou d'une tuyauterie pneumatique, dans laquelle circule un gaz.  The connection flange can in various applications be used for the connection of a hydraulic pipe, in which a liquid circulates, or a pneumatic pipe, in which a gas flows.
Les machines de ce type sont classiquement pourvues d 'un corps qui, au niveau de leur entrée et/ou de leur sortie par laquelle elles doivent être raccordées, est doté d 'une conduite pourvue d 'un co llet d' extrémité pour son raccordement au reste de l 'installation.  Machines of this type are conventionally provided with a body which, at their inlet and / or their outlet through which they must be connected, is provided with a pipe provided with an end cap for its connection. to the rest of the installation.
On a représenté sur la figure 1 un premier exemple de mise en œuvre dans lequel le co llet 1 est venu de matière avec la conduite 2 de raccordement de la machine pour former une bride dotée d'un certain nombre de trous axiaux, tels que 3 , ici au nombre de huit, pour le serrage du collet 1 contre un co llet correspondant, avec interposition d'un joint d' étanchéité .  FIG. 1 shows a first example of implementation in which the shell 1 is integral with the pipe 2 connecting the machine to form a flange with a number of axial holes, such as 3 , here eight in number, for clamping the collar 1 against a corresponding glllet, with the interposition of a seal.
On a représenté sur la figure 2 un autre mode de réalisation de la bride dans laquelle les trous axiaux 3 sont remplacés par des encoches radiales 4 permettant l' insertion latérale de boulons.  There is shown in Figure 2 another embodiment of the flange in which the axial holes 3 are replaced by radial notches 4 for the lateral insertion of bolts.
Dans certaines applications, en particulier en ce qui concerne le pompage de minerais, le matériau destiné à être manipulé est particulièrement abrasif de sorte que le corps de la pompe doit être réalisé en un matériau suffisamment dur pour résister à l ' abrasion. Elle est souvent, dans ce cas, réalisée en fonte au chrome ou de fonte Ni-hard. In some applications, particularly with respect to the pumping of ores, the material to be handled is particularly abrasive so that the body of the pump must be made of material sufficiently hard to resist abrasion. It is often, in this case, made of chrome cast iron or Ni-hard cast iron.
De tels matériaux sont particulièrement durs à usiner et atteignent même la limite d'usinabilité, de sorte que la réalisation de trou et d' encoches est une opération particulièrement délicate. Ce type de matériau, bien que résistant à des efforts de compression, est en outre relativement cassant, de sorte que la bride ainsi réalisée n' est pas capable de résister à des efforts de serrage trop importants.  Such materials are particularly hard to machine and even reach the limit of machinability, so that making hole and notches is a particularly delicate operation. This type of material, although resistant to compression forces, is also relatively brittle, so that the flange thus produced is not able to withstand excessive clamping forces.
Pour pallier cet inconvénient, il a été proposé de réaliser la bride sous la forme d'un élément séparé dissocié de la conduite sur laquelle elle vient se monter.  To overcome this drawback, it has been proposed to make the flange in the form of a separate element dissociated from the pipe on which it is mounted.
En se référant à la figure 3 , sur laquelle on reconnaît la conduite 2 dotée de son collet 1 d ' extrémité, la bride 5 est réalisée en deux parties 5 a et 5b, globalement semicirculaires et qui sont destinées à être assemblées, par boulonnage, pour former une bride globalement annulaire dont le diamètre interne est inférieur au diamètre externe du co llet 1 .  Referring to FIG. 3, on which the pipe 2 with its collar 1 of end is recognized, the flange 5 is made in two parts 5a and 5b, generally semicircular and which are intended to be assembled, by bolting, to form a generally annular flange whose inner diameter is smaller than the outer diameter of the shell 1.
Bien qu ' avantageux dans la mesure où il permet de réaliser la bride en un matériau plus résistant à la flexion due au serrage et plus facile à usiner, cet agencement nécessite d' appareiller des éléments de bride relativement vo lumineux et lourds, ce qui complique l 'opération de raccordement de la machine industrielle.  Although advantageous in that it allows the flange to be made of a material which is more resistant to bending due to clamping and easier to machine, this arrangement requires the fitting of relatively light and heavy flange elements, which complicates the connection operation of the industrial machine.
Il est donc proposé de pallier les inconvénients liés à l 'utilisation des brides conventionnelles .  It is therefore proposed to overcome the disadvantages associated with the use of conventional flanges.
L 'invention concerne donc, selon un premier aspect, une bride de raccordement d'une machine industrielle qui est destinée à venir en appui sur un co llet prévu sur le corps de la machine et à coopérer par serrage avec une bride de raccordement correspondante.  The invention thus relates, according to a first aspect, to a connection flange of an industrial machine which is intended to bear on a cotlet provided on the body of the machine and to cooperate by clamping with a corresponding connection flange.
Cette bride comporte un corps de bride monobloc annulaire et une pièce de verrouillage fendue venant se monter autour d'une partie cylindrique du corps de la machine, la pièce de verrouillage comprenant une première face destinée à venir en appui sur une portée prévue sur le co llet, et une deuxième face constituant une butée sur laquelle vient en appui le corps de bride lors du serrage. Dans un mode de réalisation, la première face est généralement tronconique de manière à venir en appui sur une portée tronconique du co llet. This flange comprises an annular one-piece flange body and a split locking piece being mounted around a cylindrical portion of the body of the machine, the locking piece comprising a first face intended to bear against a range provided on the llet, and a second face constituting a stop on which bears the flange body during tightening. In one embodiment, the first face is generally frustoconical so as to bear against a frustoconical bearing surface of the cup.
Selon une autre caractéristique de la pièce de verrouillage, la deuxième face est plane et s ' étend généralement perpendiculairement à l ' axe de serrage du corps de bride sur la pièce de verrouillage.  According to another feature of the locking piece, the second face is flat and extends generally perpendicular to the clamping axis of the flange body on the locking piece.
La pièce de verrouillage comporte, par exemple, des surfaces périphériques interne et externe cylindriques.  The locking piece comprises, for example, cylindrical inner and outer peripheral surfaces.
Selon encore une autre caractéristique, le corps de bride comporte un épaulement annulaire radial par lequel il vient en appui, au serrage, contre l' élément de verrouillage.  According to yet another characteristic, the flange body has a radial annular shoulder by which it bears, against tightening, against the locking element.
Le corps de bride peut, par exemple, comporter une surface périphérique interne comportant un premier alésage ayant un diamètre inférieur à un diamètre externe de l ' élément de verrouillage et une deuxième alésage ayant un diamètre supérieur audit diamètre externe de l ' élément de verrouillage, l ' épaulement annulaire s ' étendant entre les premier et deuxième alésages.  The flange body may, for example, have an inner peripheral surface having a first bore having a diameter less than an outer diameter of the locking member and a second bore having a larger diameter than said outer diameter of the locking member, the annular shoulder extending between the first and second bores.
Le corps de bride peut en outre être percé d'un ensemble de trous axiaux pour son serrage, par exemple au moyen de boulons, sur la bride correspondante.  The flange body may further be drilled with a set of axial holes for its clamping, for example by means of bolts, on the corresponding flange.
Dans un mode de réalisation, le corps de bride et la pièce de verrouillage sont chacun réalisés en une seule pièce en acier.  In one embodiment, the flange body and the locking piece are each made of a single piece of steel.
L 'invention concerne également, selon un deuxième aspect, un procédé de raccordement d'une machine industrielle comprenant un corps de machine doté d'une conduite de raccordement pourvue d'un co llet d' extrémité, au moyen d'une bride telle que définie ci-dessus.  The invention also relates, according to a second aspect, to a method of connecting an industrial machine comprising a machine body provided with a connecting pipe provided with an end cap, by means of a flange such that defined above.
Ce procédé comporte les étapes de :  This process comprises the steps of:
montage du corps de bride autour de la conduite de raccordement par insertion de ladite conduite dans ledit corps de bride ;  mounting the flange body around the connecting line by inserting said conduit into said flange body;
insertion de l' élément de verrouillage fendu autour de la conduite, au voisinage du co llet ; et  insertion of the split locking element around the pipe, in the vicinity of the shell; and
serrage du corps de bride contre l ' élément de verrouillage. D ' autres buts, caractéristiques et avantages de l ' invention apparaîtront à la lecture de la description suivante, donnée uniquement à titre d' exemple non limitatif, et faite en référence aux dessins annexés, sur lesquels : clamping the flange body against the locking element. Other objects, features and advantages of the invention will appear on reading the following description, given solely by way of nonlimiting example, and with reference to the appended drawings, in which:
les figures 1 , 2 et 3 , dont il a déjà été fait mention, illustrent des exemples de brides selon l ' état de la technique ;  Figures 1, 2 and 3, which has already been mentioned, illustrate examples of flanges according to the state of the art;
la figure 4 est une vue en perspective d'une bride de raccordement selon l' invention ;  Figure 4 is a perspective view of a connection flange according to the invention;
la figure 5 est une vue éclatée de la bride de la figure 4 ; et  Figure 5 is an exploded view of the flange of Figure 4; and
la figure 6 est une vue en coupe de la bride des figures 4 et 5 , selon un plan s ' étendant selon l ' axe général d'une conduite de raccordement de la machine.  Figure 6 is a sectional view of the flange of Figures 4 and 5, in a plane extending along the general axis of a connecting pipe of the machine.
En référence aux figures 4 à 6 , on va décrire un exemple de réalisation d'une bride de raccordement d'une machine industrielle. Dans l ' exemple envisagé, cette bride est destinée à assurer le raccordement d'une machine de type pompe, vanne, turbine, dans un circuit d 'une installation industrielle.  With reference to FIGS. 4 to 6, an embodiment of a connection flange of an industrial machine will be described. In the example envisaged, this flange is intended to ensure the connection of a machine type pump, valve, turbine, in a circuit of an industrial installation.
La bride est ainsi destinée à venir se monter sur le corps de la machine, et en particulier sur une extension du corps formant une conduite 2, fictivement tronquée sur les figures 4 à 6, qui est pourvue d'un co llet 1 d' extrémité.  The flange is thus intended to be mounted on the body of the machine, and in particular on an extension of the body forming a pipe 2, fictitiously truncated in FIGS. 4 to 6, which is provided with an end cap 1 .
Dans le but de permettre au corps de la machine, ainsi qu' à la conduite de raccordement, de résister à l ' abrasion due à la nature des matériaux utilisés, l ' ensemble du corps de la machine, y compris la conduite 2, est réalisé en un matériau dur, de type fonte au chrome, ou de fonte Ni-hard.  In order to allow the machine body, as well as the connecting pipe, to withstand abrasion due to the nature of the materials used, the entire machine body, including the pipe 2, is made of a hard material, type chrome cast iron, or Ni-hard cast iron.
La bride, quant à elle, est réalisée en deux parties, à savoir un corps de bride 6 et une pièce de verrouillage 7.  The flange, in turn, is made in two parts, namely a flange body 6 and a locking piece 7.
Comme on le voit sur la figure 5 , le corps de bride 6 à une forme annulaire et délimite intérieurement un passage P permettant son insertion autour de la conduite. A cet effet, le plus petit diamètre interne d l de la bride 6 est supérieur au diamètre externe d2 du co llet 1 . As seen in Figure 5, the flange body 6 has an annular shape and internally delimits a passage P allowing its insertion around the pipe. For this purpose, the smallest diameter internal dl of the flange 6 is greater than the outer diameter d2 of the cotlet 1.
La pièce de verrouillage 7 est réalisée sous la forme d'un anneau fendu. Elle est destinée à venir s ' appuyer contre une portée 8 prévue au niveau de la face postérieure du collet 1 . Elle constitue ainsi une cale contre laquelle vient buter le corps de bride 6 au serrage.  The locking piece 7 is made in the form of a split ring. It is intended to come to bear against a range 8 provided at the rear face of the collar 1. It thus constitutes a wedge against which abuts the flange body 6 to tighten.
En se référant également à la figure 5 , on voit en effet que la pièce de verrouillage 7 comporte une face antérieure 9 tournée vers le co llet 1 , de forme complémentaire de celle de la portée 8 du collet sur laquelle elle vient s ' appuyer.  Referring also to FIG. 5, it can be seen that the locking piece 7 has an anterior face 9 facing the collar 1, of a shape complementary to that of the bearing surface 8 of the collar on which it bears.
Dans l' exemp le de réalisation représenté, la face d' extrémité antérieure 9 est généralement tronconique de manière à venir s ' appuyer sur une portée 8 également tronconique. Mais, bien entendu, on ne sort pas du cadre de l' invention lorsque la portée 8 est réalisée sous la forme d'un siège annulaire dont le plan s ' étend perpendiculairement à l ' axe de serrage ou, en d' autres termes, à l ' axe général de la conduite 2.  In the embodiment shown, the front end face 9 is generally frustoconical so as to rest on a scope 8 also frustoconical. But, of course, it is not beyond the scope of the invention when the seat 8 is made in the form of an annular seat whose plane extends perpendicularly to the clamping axis or, in other words, to the general axis of the pipe 2.
Toutefois, le mode de réalisation dans lequel la face antérieure 9 de la pièce de verrouillage 7 est tronconique, est avantageux dans la mesure où, dans ce cas, les efforts de serrage appliqués sur la conduite 2 s ' exercent essentiellement en compression et peuvent dès lors être aisément supportés par le co llet 1 .  However, the embodiment in which the anterior face 9 of the locking piece 7 is frustoconical, is advantageous insofar as, in this case, the clamping forces applied to the pipe 2 are exerted essentially in compression and can from when easily supported by the column 1.
En ce qui concerne la face postérieure 10 de la pièce de verrouillage 7 , celle-ci constitue une butée contre laquelle vient prendre appui le corps de bride 6. Elle a une forme généralement annulaire s ' étendant dans un plan perpendiculaire à l ' axe de serrage.  With regard to the rear face 10 of the locking piece 7, the latter constitutes an abutment against which the flange body 6 bears. It has a generally annular shape extending in a plane perpendicular to the axis of Tightening.
La pièce de verrouillage 7 comporte encore une surface périphérique externe 1 1 et une surface périphérique interne 12 toutes deux cylindriques. Le diamètre interne d3 de la surface périphérique interne 12 est légèrement supérieur au diamètre externe de la conduite 2, tout en restant inférieur au diamètre externe d2 du co llet 1 , tandis que le diamètre d4 de la surface périphérique externe est sensiblement supérieur au diamètre d2 du collet 1 , et au diamètre d l du passage P pour constituer une butée pour le corps de bride 6. La pièce de verrouillage 7 est de préférence réalisée en une seule pièce annulaire d' acier et est fendue, au montage, par exemple au moyen d'une disqueuse, de manière à permettre, par déformation, son montage autour de la conduite 2. The locking piece 7 further comprises an outer peripheral surface 11 and an inner peripheral surface 12 both cylindrical. The inner diameter d3 of the inner peripheral surface 12 is slightly greater than the outer diameter of the pipe 2, while remaining smaller than the outer diameter d2 of the shell 1, while the diameter d4 of the outer peripheral surface is substantially greater than the diameter d2. collar 1, and the diameter d1 of the passage P to form a stop for the flange body 6. The locking piece 7 is preferably made of a single annular piece of steel and is slotted, for mounting, for example by means of a grinder, so as to allow, by deformation, its mounting around the pipe 2.
En ce qui concerne le corps de bride 6, celui-ci comporte, intérieurement, un premier alésage 13 , qui délimite le passage P et dont le diamètre d l est supérieur au diamètre interne d3 et inférieur au diamètre externe d4 de la pièce de verrouillage 7 tout en restant supérieur au diamètre d2 du collet 1 , et un deuxième alésage 14, de diamètre sensiblement supérieur au diamètre externe d4 de la pièce 7.  With regard to the flange body 6, the latter comprises, internally, a first bore 13, which delimits the passage P and whose diameter d1 is greater than the internal diameter d3 and less than the external diameter d4 of the locking piece 7 while remaining greater than the diameter d2 of the collar 1, and a second bore 14, of diameter substantially greater than the external diameter d4 of the part 7.
Les deux alésages 13 et 14 délimitent ainsi un épaulement annulaire 15 qui vient en appui, au serrage, contre la face d' extrémité postérieure 10 de la pièce de verrouillage 7 (figure 6) .  The two bores 13 and 14 thus delimit an annular shoulder 15 which abuts against the posterior end face 10 of the locking piece 7 (FIG. 6).
Comme on le voit sur les figures 4 à 6, le corps de bride 6 est encore doté d'un ensemble de trous, tels que 16, ici au nombre de huit, mais pouvant être compris entre quatre et douze, voire seize trous pour les brides de grande dimension, ces trous 16 étant destinés à recevoir une vis de serrage.  As seen in Figures 4 to 6, the flange body 6 is further provided with a set of holes, such as 16, here eight in number, but which can be between four and twelve or even sixteen holes for them. large flanges, these holes 16 being intended to receive a clamping screw.
Le corps de bride 6 est par exemple réalisé en acier, de sorte que l 'opération de perçage des trous 16 est relativement aisée à mettre en œuvre . En outre, elle peut aisément supporter les efforts de flexion engendrés au serrage . Tel est également le cas de la pièce de verrouillage 7, réalisée de préférence en acier.  The flange body 6 is for example made of steel, so that the drilling operation of the holes 16 is relatively easy to implement. In addition, it can easily withstand the bending forces generated by tightening. This is also the case of the locking piece 7, preferably made of steel.
Le raccordement d'une machine industrielle au moyen de la bride qui vient d' être décrite est relativement aisé à mettre en œuvre.  The connection of an industrial machine by means of the flange which has just been described is relatively easy to implement.
Pour ce faire, il convient simp lement de monter le corps de bride 6 autour de la conduite 2, en passant par le collet 1 , puis d' insérer la pièce de raccordement 7, par déformation en l ' écartant par élasticité, autour de la conduite 2, au voisinage du collet. La même opération est effectuée sur l ' élément de canalisation à raccorder. On applique alors le corps de bride 6 en butée contre la pièce 7 elle-même en appui contre la portée 8. Il convient alors simplement de serrer les brides l 'une contre l ' autre, par boulonnage, avec interposition d'un joint d' étanchéité .  To do this, it is simply necessary to mount the flange body 6 around the pipe 2, passing through the collar 1, then to insert the connecting piece 7, by deformation by spreading it elastically, around the pipe 2, in the vicinity of the collar. The same operation is performed on the pipe element to be connected. The flange body 6 is then abutted against the part 7 itself bearing against the bearing surface 8. It is then simply necessary to tighten the flanges against each other, by bolting, with the interposition of a gasket. sealing.

Claims

REVENDICATIONS
1 . Bride de raccordement d'une machine industrielle, ladite bride étant destinée à venir en appui sur un co llet ( 1 ) prévu sur le corps de la machine et à coopérer par serrage avec une bride de raccordement correspondante, caractérisée en ce qu ' elle comporte un corps de bride (6) monobloc annulaire et une pièce de verrouillage (7) fendue venant se monter autour d'une partie cylindrique du corps de la machine, ladite pièce de verrouillage comprenant une première face (9) destinée à venir en appui sur une portée (8) prévue sur le co llet et une deuxième face ( 10) constituant une butée sur laquelle vient en appui le corps de bride, lors du serrage. 1. Connecting flange of an industrial machine, said flange being intended to rest on a glue (1) provided on the body of the machine and to cooperate by clamping with a corresponding connecting flange, characterized in that it comprises an annular one-piece flange body (6) and a slotted locking piece (7) being mounted around a cylindrical portion of the body of the machine, said locking piece comprising a first face (9) intended to bear on a bearing surface (8) provided on the collar and a second face (10) constituting an abutment against which the flange body bears when clamping.
2. Bride selon la revendication 1 , caractérisée en ce que la première face (9) est généralement tronconique de manière à venir en appui sur une portée tronconique (8) du collet.  2. Flange according to claim 1, characterized in that the first face (9) is generally frustoconical so as to bear against a frustoconical bearing surface (8) of the collar.
3. Bride selon l 'une des revendications 1 et 2, caractérisée en ce que la deuxième face ( 10) est plane et s ' étend généralement perpendiculairement à l ' axe de serrage du corps de bride sur la pièce de verrouillage.  3. Flange according to one of claims 1 and 2, characterized in that the second face (10) is flat and extends generally perpendicular to the clamping axis of the flange body on the locking piece.
4. Bride selon l 'une quelconque des revendications 1 à 3 , caractérisée en ce que la pièce de verrouillage comporte des surfaces périphériques interne et externe ( 1 1 , 12) cylindriques.  4. Flange according to any one of claims 1 to 3, characterized in that the locking member comprises inner and outer peripheral surfaces (1 1, 12) cylindrical.
5. Bride selon l 'une quelconque des revendications 1 à 4, caractérisée en ce que le corps de bride (6) comporte un épaulement annulaire ( 15) radial par lequel il vient en appui, au serrage, contre l ' élément de verrouillage (7).  5. Flange according to any one of claims 1 to 4, characterized in that the flange body (6) comprises a radial annular shoulder (15) by which it bears against the locking element when clamped ( 7).
6. Bride selon la revendication 5 , caractérisée en ce que le corps de bride comporte une surface périphérique interne comprenant un premier alésage ( 13) ayant un premier diamètre inférieur à un diamètre externe de l ' élément de verrouillage et un deuxième alésage ( 14) ayant un diamètre supérieur audit diamètre externe de l ' élément de verrouillage, l ' épaulement annulaire ( 15) s ' étendant entre les premier et deuxième alésages. Flange according to claim 5, characterized in that the flange body has an inner peripheral surface comprising a first bore (13) having a first diameter smaller than an outer diameter of the locking member and a second bore (14). having a diameter greater than said outer diameter of the locking member, the annular shoulder (15) extending between the first and second bores.
7. Bride selon l 'une quelconque des revendications 1 à 6, caractérisée en ce que le corps de bride est percé d'un ensemble de trous ( 16) axiaux pour son serrage sur la bride correspondante. 7. Flange according to any one of claims 1 to 6, characterized in that the flange body is pierced with a set of holes (16) axial for its clamping on the corresponding flange.
8. Bride selon l 'une quelconque des revendications 1 à 7, caractérisée en ce que le corps de bride et la pièce de verrouillage sont chacun réalisés en une seule pièce d' acier.  8. Flange according to any one of claims 1 to 7, characterized in that the flange body and the locking piece are each made of a single piece of steel.
9. Procédé de raccordement d'une machine industrielle comprenant un corps de machine doté d'une conduite (2) de raccordement pourvue d'un collet ( 1 ) d' extrémité, caractérisé en ce qu'il comporte les étapes de :  9. A method of connecting an industrial machine comprising a machine body provided with a connecting pipe (2) provided with a collar (1) end, characterized in that it comprises the steps of:
montage du corps de bride autour de la conduite de raccordement par insertion de ladite conduite dans un corps de bride ;  mounting the flange body around the connecting line by inserting said conduit into a flange body;
montage d'un élément de verrouillage fendu autour de la conduite, au voisinage du co llet ; et  mounting a split lock element around the pipe, in the vicinity of the column; and
serrage du corps de bride contre l ' élément de verrouillage.  clamping the flange body against the locking element.
EP12726058.6A 2011-05-30 2012-05-29 Flange for connecting a hydraulic or pneumatic pipe of an industrial machine Withdrawn EP2715202A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1154695A FR2976041B1 (en) 2011-05-30 2011-05-30 CONNECTING FLANGE OF A HYDRAULIC OR PNEUMATIC PIPING OF AN INDUSTRIAL MACHINE
PCT/EP2012/059982 WO2012163888A2 (en) 2011-05-30 2012-05-29 Flange for connecting a hydraulic or pneumatic pipe of an industrial machine

Publications (1)

Publication Number Publication Date
EP2715202A2 true EP2715202A2 (en) 2014-04-09

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EP12726058.6A Withdrawn EP2715202A2 (en) 2011-05-30 2012-05-29 Flange for connecting a hydraulic or pneumatic pipe of an industrial machine

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US (1) US20140125057A1 (en)
EP (1) EP2715202A2 (en)
CN (1) CN103635732A (en)
AU (1) AU2012264810A1 (en)
CA (1) CA2833651A1 (en)
CL (1) CL2013003438A1 (en)
FR (1) FR2976041B1 (en)
MA (1) MA35126B1 (en)
RU (1) RU2013158138A (en)
WO (1) WO2012163888A2 (en)
ZA (1) ZA201308174B (en)

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JP7245888B2 (en) * 2017-11-08 2023-03-24 コスモ工機株式会社 Flange stiffener
JP6970587B2 (en) * 2017-11-08 2021-11-24 コスモ工機株式会社 Flange reinforcement
GB2580692B (en) * 2019-01-25 2022-09-28 Danfoss Power Solutions Ii Technology As Flange for a hose
KR102025645B1 (en) * 2019-05-31 2019-11-26 임근희 Flange coupling unit for piping connection
US11598456B1 (en) * 2021-08-12 2023-03-07 Freudenberg Oil & Gas, Llc Pipe connection with split swivel ring
CN114941757A (en) * 2022-04-05 2022-08-26 东台市洪华机械配件有限公司 High-temperature-resistant flat welding flange with neck and processing technology

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EP1536176A2 (en) * 2003-11-26 2005-06-01 ABB PATENT GmbH Flange joint and method of manufacturing the same

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EP1536176A2 (en) * 2003-11-26 2005-06-01 ABB PATENT GmbH Flange joint and method of manufacturing the same

Also Published As

Publication number Publication date
MA35126B1 (en) 2014-05-02
WO2012163888A2 (en) 2012-12-06
US20140125057A1 (en) 2014-05-08
RU2013158138A (en) 2015-07-10
FR2976041A1 (en) 2012-12-07
CA2833651A1 (en) 2012-12-06
AU2012264810A1 (en) 2013-12-12
ZA201308174B (en) 2014-07-30
FR2976041B1 (en) 2014-07-25
CL2013003438A1 (en) 2014-07-18
CN103635732A (en) 2014-03-12
WO2012163888A3 (en) 2013-08-15

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