DE8030074U1 - COUPLING DEVICE FOR CONNECTING PIPE SECTIONS OF PIPING, IN PARTICULAR HIGH PRESSURE PIPING - Google Patents

Description

· '>' .:.:. ·· .. ·· ψ Act 80-20-89 I. November 10, 1980
Dr F / DI DR. HEINZ FEDER DR. WOLF-D. FEATHER Siebeck-Metallwerk GmbH, Postfach 1620, 4030 Ratinqen PATENT LAWYERS Coupling device for each other
Closing pipe sections from Rohrlei
services, especially high pressure pipelines. Dusseldorf The object of the innovation is a coupling device for adjoining pipe sections of pipelines, especially high pressure pipelines where the ends of the interconnected pipe sections with in cross section C. circular flanges are provided with you processing surfaces abutting each other releasably ver are bound. Such coupling devices are known. The conn - The adjacent flanges are generally used mean by a multitude of screw bolts which are on distributed over the circumference of the flanges, ge through them leads are. C. The assembly and disassembly of such coupling devices is because of the large number of to be attached or detached Screw connections extremely time-consuming. Il Il I I I I Il Il I 1 I t I
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Act 80-20-89

The task underlying the innovation was to design a coupling device of the type mentioned at the beginning improve that the time required for assembly and disassembly of the coupling can be reduced considerably.

This problem is solved according to the invention in that the flanges are made of two in the essential semicircular shell-like parts existing clamping ring are connected to each other, the Clamping ring on its inside has a circumferential groove with outwardly diverging side walls, which on inclined, on which the sealing surfaces facing away from the sides of the flanges, rest arranged guide surfaces, and the both clamping ring parts each have connecting flanges at their two opposite ends, through which screw bolts are passed, and the side walls of the groove in the area of the connecting flanges the clamping ring parts have bevels widening the cross-section of the groove in this area towards the outside.

As will be explained in more detail below using an exemplary embodiment, the need for assembly and disassembly new coupling device only two screw connections are attached or loosened. Through these two Screw connections, the two clamping ring parts are firmly held together and thus through the interaction of the Side walls of the groove with the guide surfaces of the flanges, A firm pressing of the sealing surfaces of the flanges against one another is achieved.

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Act 80-20-89

It has been shown, surprisingly, that the new coupling device even with high pressure lines absolutely tight, but on the other hand quick to assemble and dismantle connection between each other subsequent pipe sections creates.

It has been shown that with the new coupling provision can achieve a reduction in the daytime of about 50%.

at the respective ends of the groove of the clamping ring parts » arranged bevels are of particular importance here because they allow easy attachment of the clamping ring parts allow to the flanges, and the assembly is thereby greatly facilitated in its initial phase.

In an advantageous embodiment of the new coupling device has each of the two clamping ring parts on its circumference at a predetermined angular distance of at its end at least one thread provided radially from the outside into the interior of the groove, Hole on. In particular, it has proven to be advantageous if each of the clamping ring parts is accurate one, at an angular distance of 90 ° from the end, arranged bore, and the thread of this bore the thread corresponds to the screw bolts passed through the connecting flanges.

In this way, the dismantling of the new coupling device is further simplified by after loosening the screws of the connecting flanges, these screw

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Act 80-20-89

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bolts into the threads of the bores of the clamping ring parts be screwed in until they hit the outer edges of the flanges on the pipe sections. By screwing in further, the clamping ring parts are then pressed away from the flanges on the pipe sections and can eventually be withdrawn.

In the following, an exemplary embodiment for a coupling device is given with reference to the accompanying drawings explained in more detail according to the innovation.

In the drawings show:

Fig. 1 in a half section in the axial direction two with a coupling device according to the innovation connected pipe sections;

Fig. 2 is a partial view of a clamping ring part of the coupling device according to Fig. 1;

FIG. 3 is a partially sectioned side view of the clamping ring part according to FIG. 2.

In the coupling device shown in FIGS. 1 to 3, two short ones are coaxial with one another and adjoining pipe sections 1 and 2 connected to one another. The pipe sections 1 and 2 can can of course also be parts of longer sections of a pipeline.

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Act 80-20-89

The pipe sections 1 and 2 have circular planes 3 and 4 at the ends facing one another, which bear against one another with their sealing surfaces 3a and 4a, in a known manner in the sealing surface 3a a sealing ring 11 receiving groove is provided.

The flanges 3 and 4 have guide surfaces 3b on the outer sides facing away from the sealing surfaces 3a and 4a and 4b, which extend obliquely or conically to the sealing surfaces 3a and 4a in such a way that the Total thickness of the flanges 3 and 4 abutting one another tapered somewhat radially outward. The flanges 3 and 4 are encompassed by a clamping ring, which consists of two semicircular, shell-like parts 5. Each clamp ring part 5 has a circumferential groove 6 on its inside. The side walls 6a of this groove 6 diverge slightly inside out with respect to the bottom of the groove, the angle of the side surfaces 6a with respect to the median plane of the clamping ring part 5 to the corresponding angle of the guide surfaces 3b, 4b in relation to the sealing surfaces 3a, 4a corresponds.

With this design, the clamping ring parts 5 can be opened from two opposite directions Attach the flanges 3 and 4, which are in contact with one another. Each clamping ring part has at both ends a connecting flange 7 with through holes After attaching the two clamping ring parts 5 on the Both flanges 3 and 4 are screw bolts through the holes 8 of the connecting flanges 7 in a manner not shown guided.

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Act 80-20-89

When screwing the two clamping ring parts 5 are these are firmly drawn onto the planes 3 and 4, with the interaction of the side walls 6a of the groove 6 with the guide surfaces 3b and 4b of the flanges 3 and a firm pressing of the two flanges 3 and 4 against one another is achieved.

When assembling the coupling device, it is particularly important that the two shell-like parts Let it sit down well and centered on the plane of the sealing surfaces. This is made easier by the fact that the side walls 6a of the groove 6 in each clamping ring part in the area of the connecting flanges 7 have a bevel exhibit. This bevel 9 reinforces the cross-sectional expansion of the groove 6 in this area namely exactly at the point that is first attached to the flanges 3, 4 when the clamping ring parts are attached will. As a result, the attachment of the clamping ring parts to the flanges is made much easier, and the two Clamping ring parts can easily be brought into the position in which the screw bolts, through the holes in the connecting flanges 7, passed through and screwed.

Each of the clamping ring parts 5 has one with a thread at an angular distance of 90 from its two ends provided bore 10, which is passed through radially from the outside to the inside to the bottom of the groove 8. The dismantling of the coupling device is made considerably easier by this hole.

Act 80-20-89

After loosening the screws holding the two clamping ring parts together, they can each be in the holes 10 are screwed in. By screwing in deeper and deeper, these screws finally press open the outer edge of the plansche 3 and 4, and in this way the clamping ring parts 5 are peeled off.

Claims (1)

Files 80-20-89 Protection Claims 1. Coupling device for adjoining pipe sections of pipelines, in particular high-pressure pipelines, in which the ends of the interconnected pipe sections are provided with flanges of circular cross-section, which are releasably connected to one another with sealing surfaces abutting one another, characterized in that the flanges (3, 4) are connected to one another by a clamping ring comprising two essentially semicircular shell-like parts (5), the clamping ring (5) having a circumferential groove (6) on its inside with outwardly diverging side walls (6a), which on inclined on the sides of the flanges (3, 4) arranged facing away from the sealing surfaces (3a, 4a) bear guide surfaces (3b, 4b), and the two clamping ring parts (5) each have connecting flanges (7) at their two opposite ends through which screw bolts are passed, and the side walls (6a) of Groove (6) in the area of the connecting flanges (7) of the clamping ring parts (5) have the cross-section of the groove (6) in this area outwardly widened bevels (9). Coupling device according to claim 1, characterized in that each of the two clamping ring parts (5) has at least one threaded bore (10) extending radially from the outside into the interior of the groove (6) at a predetermined angular distance from its end. having. Act 80-20-89 Coupling device according to claim 2, characterized in that each clamping ring part (5) has a bore (10) arranged at an angular distance of 90 ° from the end, and the thread of this bore (10) is the thread of the one passed through the connecting flanges (7) Screw bolt corresponds.