FR3098564A1 - Accessory holder device cooperating with a pipe containing a fluid - Google Patents

Abstract

The present invention relates to a device (1) cooperating with a pipe containing a fluid, said device (1) comprising an accessory holder plate (10) movable in a plane (P) between a first extremal position and a second extremal position, said device (1) comprising a body (5) provided with an upstream half-body (3) and a downstream half-body (4) arranged respectively upstream and downstream of said accessory holder plate (10), said half-body upstream and downstream body (3 and 4) respectively having an upstream orifice (6) and a downstream orifice (7) allowing fluid circulation of said fluid, said accessory holder plate (10) having a first perforated portion arranged coaxially facing said orifices upstream (6) and downstream (7) when said accessory holder plate (10) is positioned in said first end position, said first perforated portion comprising a first orifice extending perpendicularly to the plane (P) between a first flat face (12 ) d e said accessory holder plate (10) and a second planar face (13) of said accessory holder plate (10). Abstract figure: Figure 1

Description

Accessory-carrying device cooperating with a pipe containing a fluid

The present invention relates to the field of installations for the production, treatment or transport of a fluid in at least one pipe. Such a fluid can in particular be a liquid, a gas, a product in pasty form or a product in the powder state.

More specifically, the invention relates to the field of devices comprising a movable accessory-holder plate in a plane (P). These devices are intended to be mounted on pipes, for example to measure a physico-chemical parameter of the fluid or to detect an overrun of a threshold pressure inside the pipe.

In a known manner, such devices provided with an accessory-holder plate thus generally comprise one or more accessories attached and secured to this accessory-holder plate.

Such an accessory is then arranged facing a perforated portion of the accessory-holder plate to be brought into contact with the fluid and thus measure the physico-chemical parameter of the fluid or detect an overpressure of the fluid present in the channeling.

Thus, the accessory comprises a support piece provided with a flat fixing face cooperating directly with a first flat face of the accessory-carrying plate.

However, such an assembly then makes it necessary to provide machining of the accessory-holder plate, such as grooves, to make it possible to receive two static seals.

A first seal is then arranged between the flat fixing face of the support part and the first flat face of the accessory-holder plate and a second seal is arranged between a second flat face of the plate. accessory holder and an upstream or downstream half-body of the device. Such an upstream or downstream half-body is then wholly or partly mobile in translation perpendicularly with respect to the plane (P).

In addition, such an accessory-carrying plate can have large dimensions, thus making it necessary to carry out the machining required on specific machines whose hourly cost of use is very high.

In addition, the maintenance operations to replace the accessory are long and require an operator to replace the two seals at each intervention.

The object of the present invention is therefore to propose an accessory-carrying device making it possible to overcome the limitations mentioned above. Indeed, an object of the invention is to provide an optimal solution for making it possible to achieve a seal with a body of the device in a way that is at the same time simple, inexpensive to manufacture and quick to implement during an operation. of maintenance.

As already mentioned, the invention relates to a device cooperating with a pipe containing a fluid, the device comprising an accessory holder plate movable in a plane (P) between a first extreme position and a second extreme position, the device comprising a body provided an upstream half-body and a downstream half-body arranged respectively upstream and downstream of the accessory-holder plate, the upstream and downstream half-bodies respectively having an upstream orifice and a downstream orifice allowing fluid circulation of the fluid, the accessory-carrying plate having a first perforated portion arranged coaxially opposite the upstream and downstream orifices when the accessory-carrying plate is positioned in the first extreme position, the first perforated portion comprising a first orifice extending perpendicularly to the plane (P) between a first flat face of the accessory-holder plate and a second flat face of the accessory-holder plate, the device comprising at least one accessory secured to the accessory-holder plate and arranged facing the first perforated portion, each accessory comprising a support piece provided with a flat fixing face cooperating with the first flat face of the accessory-carrying plate.

In addition, the terms "upstream" and "downstream" are to be considered with regard to the direction of circulation of the fluid inside the device or the direction oriented from a half-body in contact with the fluid towards a half-body not being not in contact with the fluid.

According to the invention, such a device is remarkable in that the support part comprises a protrusion extending inside the first orifice perpendicularly with respect to the planar fixing face, the protrusion comprising a planar end face cooperating with one of the upstream and downstream half-bodies, the support part comprising at least one first static seal arranged at the flat end face, the flat end face being arranged close to the second face plane of the accessory-holder plate.

In other words, the fluid is not directly in contact with the accessory holder plate but only comes into contact with the support part of the accessory(ies). Such a fluid can, for example, pass through the device by passing through the support part extending on either side of the accessory-holder plate inside the first orifice.

The first static seal(s) may advantageously be O-rings or seals comprising a section of particular shape such as, for example, a square, rectangular or quadrilobe section.

In addition, the flat end face may comprise several first static seals arranged coaxially.

In addition, such an accessory-carrying plate may comprise, in addition to the first perforated portion, a solid portion capable of allowing a leaktight closure of the pipe during, for example, a maintenance operation on the accessory fitted to the accessory-carrying plate. , or on the first static seal(s) fitted to the support part.

Advantageously, the second flat face of the accessory-carrying plate and the flat end face of the support part can be substantially coplanar or offset by a clearance of less than a few millimeters.

Thus, when the downstream half-body seals by tightening the first static seal arranged at the flat end face of the support part, the downstream half-body comes into contact only with the flat face d end of the support piece.

In addition, the support part can also cooperate directly with the upstream half-body. Alternatively, another part, such as a ring, can be inserted between the support part and the upstream half-body.

Therefore, according to a first exemplary embodiment, the support part may comprise at least one second static seal arranged at the level of a flat sealing face, the flat sealing face being arranged close to the first flat face. of the accessory plate.

In other words, a first static seal can be positioned on the flat end face of the support part and a second static seal can be positioned on the flat sealing face.

In this case, the accessory can for example comprise a sensor making it possible to carry out a measurement of a physico-chemical parameter directly reported and secured to the support part.

According to a second exemplary embodiment, the accessory may comprise a ring and clamping members cooperating with the support part to secure the ring with the support part, the ring comprising at least one second static seal arranged at the level of a flat sealing face, the flat sealing face being arranged close to the first flat face of the accessory holder plate.

Thus, the ring is attached to the support part and then secured by the clamping members with this support part.

Furthermore, in this case, the accessory may comprise a bursting disc making it possible to detect an overrun of a threshold pressure of the fluid inside the upstream orifice, the clamping members sealingly tightening the bursting disc between the support part and the ring.

In other words, the bursting disc is interposed between the support part and the ring. Such a rupture disk is then capable of preventing the circulation of fluid through the device as long as the pressure of this fluid is below a predetermined threshold value. However, if the fluid pressure reaches this predetermined threshold value, the rupture disc is then configured to break and let the fluid escape through the device from the upstream half-body to the downstream half-body.

According to another aspect, different types of device can make it possible to receive such an accessory-carrying plate. These devices are configured to allow relative movement of the accessory holder plate relative to the body when, for example, the accessory must be replaced, but also to tighten the first and second static seals. The half-bodies of the device are thus wholly or partly mobile in translation perpendicularly with respect to the plane (P).

Thus, according to a first variant of the device, such a device may comprise clamping/spreading means making it possible to clamp, and conversely, to spread the upstream and downstream half-bodies with respect to the blanking plate.

In this case, the upstream and downstream half-bodies are therefore respectively mobile in translation in the two opposite directions of a direction perpendicular to the plane (P).

According to a second variant of the device, the device may comprise means movable in translation integral with at least one of the upstream and downstream half-bodies, the movable means in translation making it possible to tighten and, conversely, to release the closing plate by relative to the upstream and downstream half-bodies.

According to this second variant, only part of the upstream half-body and/or of the downstream half-body, formed by the moving means, is able to move in translation in a direction perpendicular to the plane (P). The other part of the upstream and/or downstream half-body is then stationary with respect to a fixed frame of the device.

In addition, the accessory holder plate can be movable in the plane (P) in different ways by having at least one degree of freedom relative to the fixed frame of the device.

According to a first embodiment, the accessory-carrying plate can be movable in translation in the plane (P).

In other words, the degree of freedom of the accessory-carrying plate with respect to the fixed frame of the device is a degree of freedom in translation along a direction inscribed in the plane (P).

According to a second embodiment, the accessory-holder plate can be rotatable in the plane (P) around an axis of rotation.

In this case, the degree of freedom of the accessory-holder plate with respect to the fixed frame of the device is a degree of freedom in rotation around an axis of rotation perpendicular to the plane (P).

Furthermore, the accessory-carrying plate may have a second perforated portion arranged coaxially opposite the upstream and downstream orifices when the accessory-carrying plate is positioned in the second extreme position, the second perforated portion comprising a second orifice extending perpendicular to the plane (P) between the first flat face and the second flat face of the accessory holder plate, the device comprising at least one other accessory secured to the accessory holder plate and arranged facing the second perforated portion, each other accessory comprising another support part provided with a flat fixing face cooperating with the first flat face of the accessory-holder plate, the other support part comprising another protrusion extending inside the second orifice perpendicularly with respect to the face fixing plate, the other protuberance comprising another flat end face cooperating with one of the upstream and downstream half-bodies, the other support part comprising at least one other first static seal arranged at the level of the the other flat end face, the other flat end face being arranged close to the second flat face of the accessory-carrying plate.

Therefore, such a device makes it possible to constantly support two accessories simultaneously. A first accessory can thus be positioned opposite the first perforated portion and a second accessory can be positioned opposite the second perforated portion. Such an arrangement makes it possible in particular to facilitate maintenance operations on one of the accessories by simply moving the accessory holder plate, for example from the first extreme position to the second extreme position.

As a result, such a device may not have a solid portion intended to face the upstream and downstream half-bodies and is then not configured to seal the pipe during a maintenance operation on one of the accessories.

The invention and its advantages will appear in more detail in the context of the following description with examples given by way of illustration with reference to the appended figures which represent:

- Figure 1, a view in partial section and in perspective of a device according to a first embodiment in accordance with the invention,

- Figure 2, a sectional view of the device according to the first embodiment,

- Figure 3, a sectional view of a device according to a second embodiment, in accordance with the invention, and

- Figure 3, a top view of a device according to a third embodiment, according to the invention.

In addition, the elements present in several distinct figures may be assigned a single reference.

As already mentioned, the invention relates to a device intended to cooperate with a pipe containing a fluid, such as in particular a gas or a liquid. Such a device thus comprises an accessory-holder plate movable in a plane P between a first extreme position and a second extreme position.

As shown in Figure 1, and regardless of the embodiment, such a device 1 comprises a body 5 provided with two half-bodies 3 and 4 movable in translation respectively perpendicular to the plane P. According to this first example embodiment of Figure 1, clamping/spacer means 2 then make it possible to move the two half-bodies 3 and 4 with respect to an accessory-carrying plate 10 movable in translation in the plane P.

In addition, the upstream half-body 3 comprises an upstream orifice 6 and the downstream half-body 4 comprises a downstream orifice 7 respectively allowing fluid circulation of the fluid to be carried out inside the device 1 when the latter is connected to a channeling. Such an upstream orifice 6 can advantageously be arranged coaxially with the downstream orifice 7.

Furthermore, as shown in FIG. 2, the accessory-carrying plate 10 has a first perforated portion 65 arranged coaxially opposite the upstream 6 and downstream 7 orifices when the accessory-carrying plate 10 is positioned in the first extreme position. Such a first perforated portion 65 comprises a first orifice 30 extending perpendicularly to the plane P between a first flat face 12 of the accessory holder plate 10 and a second flat face 13 of the accessory holder plate 10.

According to figure 1, the accessory holder plate 10 is positioned in the second extreme position and then has a second perforated portion 66 provided with a second orifice 31 extending perpendicularly to the plane P.

According to the first embodiment of a device, the device 1 then comprises two accessories 17 and 27 secured to the accessory-holder plate 10 and arranged respectively opposite the first perforated portion 65 and the second perforated portion 66. Such arrangement thus makes it possible to carry out maintenance operations on one of the accessories by simply inter-changing the accessories 17, 27 of place relative to the two half-bodies 3 and 4 by moving the accessory-holder plate 10 between the two extreme positions.

In addition, each accessory 17, 27 comprises a support piece 14 provided with a flat fixing face 15 cooperating in a support-type connection with the first flat face 12 of the accessory-holder plate 10.

In addition, such a support piece 14 comprises a protrusion 16 extending inside the first orifice 30 perpendicularly relative to the planar fixing face 15. Such a protrusion 16 comprises a planar end face 18 intended to cooperate with the downstream half-body 4 of the body 5.

The support part 14 is also also equipped with at least a first static seal 51 arranged at the level of the flat end face 18.

As shown, this flat end face 18 is arranged close to the second flat face 13 of the accessory-carrying plate 10, protruding from the plane defined by the second flat face 13 to make it possible to guarantee optimum static sealing directly between the downstream half-body 4 and the support part 12.

According to this first embodiment, each accessory 17, 27 comprises a ring 60 and clamping members 61 cooperating with the support part 14 to secure the ring 60 with the support part 14. Such a ring 60 then comprises at least a second seal 63 of static sealing arranged at the level of a flat sealing face 64. Furthermore, this flat sealing face 64 is configured to cooperate with the upstream half-body 3 in order to exert a compressive force on a second static seal 63.

In addition, such an accessory 17, 27 may comprise a bursting disc 62 making it possible to detect an overrun of a threshold pressure of the fluid present inside the upstream orifice 6. In addition, clamping members 61 such as that screws or nuts forming a helical type connection can make it possible to tightly tighten the bursting disc 62 between the support part 14 and the ring 60.

Such a bursting disc 62 may in particular be formed by a sheet metal whose shape is predetermined and whose thickness is precisely calibrated to break when the pressure of the fluid in the pipe is greater than a threshold pressure. Means for detecting the rupture of the rupture disc 62, not shown, can also be fitted to such an accessory 17, 27. These detection means can then make it possible to generate an alarm signal to automatically alert an operator of the overrun of the pressure threshold of the fluid in the pipeline.

When the alarm signal is generated, the operator can then stop the process in progress and check an installation to identify the causes of the overpressure in the pipeline.

According to a second embodiment of a device shown in Figure 3, a device 11 may also include an accessory holder plate 20 provided with a single accessory 37.

Consequently, the accessory holder plate 20 comprises a first perforated portion 65 provided with a first orifice 30 facing which the accessory 37 is arranged. . Such a solid portion 39 is then equipped with two static seals arranged at the level of a first flat face 22 and a second flat face 23 respectively.

Furthermore, such an accessory 37 comprises a support part 24 provided with a planar fixing face 25 cooperating with the first planar face 22 of the accessory holder plate 20. In addition, such a support part 24 can house for example a sensor 38 intended to come into contact with the fluid passing through the device to enable measurement of a physico-chemical parameter of the fluid.

In addition, the support part 24 comprises a protrusion 26 extending inside the first orifice 30 perpendicularly relative to the flat fixing face 25 of the accessory-holder plate 20. Thus, the protrusion 26 comprises a flat face end 28 cooperating with the downstream half-body 74.

A first static seal 52 is arranged at this flat end face 28 close to the second flat face 23 of the accessory-holder plate 20.

Furthermore, the support part 24 comprises at least a second static seal 53 arranged at the level of a flat sealing face 54 arranged close to the first flat face 22 of the accessory-holder plate 20.

In addition, as shown, such a device 11 may comprise means 55 movable in translation integral with the downstream half-body 74. Such movable means 55 in translation are thus configured to clamp, and conversely to release the closing plate 20 by relative to the upstream and downstream half-bodies 73 and 74.

In addition, such means movable in translation 55 can also be combined with an accessory-holder plate equipped with two accessories 17 and 27 in accordance with the first embodiment illustrated in Figures 1 and 2.

According to a third embodiment of a device shown in Figure 4, the device 111 comprises an accessory holder plate 120 provided with two accessories 17 and 27 as previously described in Figures 1 and 2. Of course, an accessory plate 120 can also be equipped with a single accessory 37 in accordance with the second embodiment illustrated in FIG. 3

However in this case, this accessory-holder plate 110 is rotatable in the plane P around an axis of rotation 112.

According to this third embodiment, the accessory-carrying plate 110 has a first perforated portion 165 intended to be arranged coaxially opposite the upstream 6 and downstream 7 orifices when the accessory-carrying plate 110 is positioned in the first extreme position. Such a first perforated portion 65 comprises a first orifice 130 extending perpendicular to the plane P between a first flat face 112 of the accessory-holder plate 110 and a second flat face 113 of the accessory-holder plate 110.

The accessory holder plate 110 also has a second perforated portion 166 intended to be arranged coaxially facing the upstream 6 and downstream 7 orifices when the accessory holder plate 110 is positioned in the second extreme position. Such a second perforated portion 166 is then provided with a second orifice 131 extending perpendicularly to the plane P between the first flat face 112 of the accessory-holder plate 110 and the second flat face 113 of the accessory-holder plate 110.

Of course, the present invention is subject to many variations in its implementation. Although several embodiments have been described, it is clearly understood that it is not conceivable to identify exhaustively all the possible modes. It is of course possible to replace a means described by an equivalent means without departing from the scope of the present invention.

Claims (9)

Device (1, 11, 111) cooperating with a pipe containing a fluid, said device (1, 11, 111) comprising an accessory-carrying plate (10, 20, 110) movable in a plane (P) between a first extreme position and a second extreme position, said device (1, 11, 111) comprising a body (5, 75) provided with an upstream half-body (3, 73) and a downstream half-body (4, 74) arranged respectively upstream and downstream of said accessory holder plate (10, 20, 110), said upstream and downstream half-bodies (3, 73 and 4, 74) respectively having an upstream orifice (6) and a downstream orifice (7) allowing fluid circulation of said fluid, said accessory-holder plate (10, 20, 110) having a first perforated portion (65, 165) arranged coaxially opposite said upstream (6) and downstream (7) orifices when said accessory-holder plate ( 10, 20, 110) is positioned in said first extreme position, said first perforated portion (65, 165) comprising a first orifice (30, 130) extending perpendicular to the plane (P) between a first planar face (12, 22 , 112) of said accessory-holder plate (10, 20, 110) and a second flat face (13, 23, 113) of said accessory-holder plate (10, 20, 110),
said device (1, 11, 111) comprising at least one accessory (17, 27, 37) secured to said accessory-carrying plate (10, 20, 110) and arranged opposite said first perforated portion (65),
said at least one accessory (17, 27, 37) comprising a support piece (14, 24) provided with a flat fixing face (15, 25) cooperating with said first flat face (12, 22, 112) of said plate accessory holder (10, 20, 110),
characterized in that said support part (14, 24) comprises a protrusion (16, 26) extending inside said first orifice (30, 130) perpendicularly with respect to said flat fixing face (15, 25), said protrusion (16, 26) comprising a flat end face (18, 28) cooperating with one of said upstream and downstream half-bodies (3, 73 and 4, 74), said support piece (14, 24) comprising at least one first static seal (51, 52) arranged at the level of said flat end face (18, 28), said flat end face (18, 28) being arranged close to said second flat face (13, 23, 113) of said accessory holder plate (10, 20, 110). Device according to claim 1,
characterized in that said support part (24) comprises at least a second static seal (53) arranged at the level of a flat sealing face (54), said flat sealing face (54) being arranged at proximity to said first flat face (22) of said accessory-holder plate (20). Device according to any one of Claims 1 to 2,
characterized in that said accessory (17, 27) comprises a ring (60) and clamping members (61) cooperating with said support part (14) to secure said ring (60) with said support part (14), said ring (60) comprising at least one second static seal (63) arranged at the level of a flat sealing face (64), said flat sealing face (64) being arranged close to said first flat face ( 12) of said accessory holder plate (10). Device according to claim 3,
characterized in that said accessory (17, 27) comprises a bursting disc (62) making it possible to detect an overrun of a threshold pressure of said fluid inside said upstream orifice (6), said clamping members (61) tightly clamping said bursting disc (62) between said support piece (14) and said ring (60). Device according to any one of Claims 1 to 4,
characterized in that said device (1) comprises clamping/spreading means (2) making it possible to clamp, and conversely, to spread said upstream and downstream half-bodies (3 and 4) with respect to said blanking plate ( 10). Device according to any one of Claims 1 to 4,
characterized in that said device (11) comprises means movable in translation (55) integral with at least one of said upstream and downstream half-bodies (73 and 74), said means movable in translation (55) making it possible to clamp and conversely, to release said blanking plate (20) relative to said upstream and downstream half-bodies (73 and 74). Device according to any one of Claims 1 to 6,
characterized in that said accessory-carrying plate (10, 20) is movable in translation in said plane (P). Device according to any one of Claims 1 to 6,
characterized in that said accessory holder plate (110) is rotatable in said plane (P) around an axis of rotation (112). Device according to any one of Claims 1 to 8,
characterized in that said accessory-holder plate (10, 110) has a second perforated portion (66, 166) arranged coaxially opposite said upstream (6) and downstream (7) orifices when said accessory-holder plate (10, 110) is positioned in said second extreme position, said second perforated portion (66, 166) comprising a second orifice (31, 131) extending perpendicular to the plane (P) between said first flat face (12, 112) and said second flat face (13, 113) of said accessory-holder plate (10, 110), said device (1, 111) comprising at least one other accessory (27) secured to said accessory-holder plate (10, 110) and arranged facing said second perforated portion (66, 166), said at least one other accessory (27) comprising another support piece (14) provided with a flat fixing face (15) cooperating with said first flat face (12, 112) of said accessory-holder plate (10, 110), said other support part (14) comprising another protrusion (16) extending inside said second orifice (31, 131) perpendicularly with respect to said flat fixing face ( 15), said other protrusion (16) comprising another planar end face (18) cooperating with one of said upstream and downstream half-bodies (3 and 4), said other support part (14) comprising at least one other first static seal (51) arranged at said other flat end face (18), said other flat end face (18) being arranged close to said second flat face (13, 113) of said accessory holder plate (10, 110).