CN220539599U

CN220539599U - Shunt device

Info

Publication number: CN220539599U
Application number: CN202321976831.3U
Authority: CN
Inventors: 杨金宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-02-27
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a shunt, which comprises a shunt assembly, wherein the outer wall of the shunt assembly is fixedly and hermetically connected with a supporting shell, the bottom end of the shunt assembly is connected with an expansion joint assembly, the expansion joint assembly comprises an outer pipe body, the top end of the outer pipe body is connected with the bottom end flange of the shunt assembly, the bottom end of the outer pipe body is provided with an inner pipe in a penetrating way, and the bottom end of the outer pipe body is provided with a sealing mechanism; in the utility model, when the distance between the wellhead and the drilling platform varies due to the action of sea waves, the water-stop sleeve can drive the inner pipe to move up and down in the outer pipe, and the moving range of the inner pipe in the outer pipe is determined by the distance between the first positioning ring and the second positioning ring and the corresponding limiting rings, so before the diverter is installed, the installation height of the two limiting rings and the distance between the two limiting rings can be adjusted on the guide rod according to the calculation result, thereby being suitable for different water depths and being more convenient to use.

Description

Shunt device

Technical Field

The utility model relates to the technical field of offshore oil exploitation, in particular to a flow divider.

Background

The diverter is an important unit device in a marine petroleum drilling system and is arranged at the upper end of a water-stop sleeve, and the diverter is mainly used for closing the vertical flow of a marine riser connection, guiding shallow airflow to leave a drill floor and discharging the shallow airflow from the site, so that the threat to personnel and equipment is eliminated.

The current common current diverter mainly comprises a diverter assembly, a support shell, an expansion joint assembly and the like, wherein the support shell is provided with a plurality of side outlets, the positions of the side outlets are configured according to the requirements of users, and the support shell is provided with a hydraulic lock for fixing the support shell and the diverter assembly; the diverter assembly is a main component of the diverter system and consists of a shell, a top cover, a rubber core, a shell sealing ring and the like; the telescopic joint assembly is one height compensator, and when the distance between the well head and the drilling surface is changed under the action of sea wave, the inner and outer cylinders of the telescopic joint can float up and down to compensate the variation of the heave height.

The diverter for the jack-up ocean drilling platform must be provided with telescopic joints for adjusting the telescopic movement of the riser, but the stroke of the telescopic joint assembly on the diverter commonly used at present is mostly fixed, so the telescopic joints of the diverter must be configured for different water depths, the design length of the telescopic joints is calculated and determined, the use limitation is large, and the improvement is needed.

Disclosure of Invention

The present utility model is directed to a shunt for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a shunt, includes the shunt assembly, the outer wall fixedly sealed connection of shunt assembly has the support casing, the bottom of shunt assembly is connected with the telescopic joint assembly, the telescopic joint assembly includes the outer body, the top of outer body and the bottom flange joint of shunt assembly, the inner tube has been worn to be equipped with by the bottom of outer body, the bottom of outer body is provided with sealing mechanism, the bottom mounting of inner tube is provided with flange, flange's top is circumference and distributes fixedly connected with a plurality of guide arms, the outer wall of outer body is close to both ends department fixedly connected with first holding ring and second holding ring respectively, a plurality of perforation with guide arm looks adaptation are all offered on the first holding ring, the second holding ring, a plurality of the outer wall fixedly connected with two spacing rings jointly of guide arm, two the spacing ring is located between first holding ring and the second holding ring, and the position of spacing ring on the guide arm is adjustable.

As a further scheme of the utility model: the limiting ring comprises a plurality of arc plates, a plurality of arc plates are fixed adjacent through bolts head and tail, through holes matched with the guide rods are formed in the arc plates, the guide rods penetrate through the corresponding through holes, jackscrews are connected to the corresponding positions of the outer wall of the limiting ring and the through holes through threaded holes in a matched mode, and the threaded holes are communicated with the corresponding through holes.

As a further scheme of the utility model: the outer wall of guide arm has offered a plurality of constant head tanks along its length direction equidistance, the screw thread end of jackscrew supports in the constant head tank.

As a further scheme of the utility model: the outer wall of the outer pipe body is fixedly connected with a plurality of guide bars in a circumferential distribution mode, the guide bars correspond to the arc plates one by one, guide grooves are formed in the outer wall of the arc plates, and the guide bars are located in the corresponding guide grooves.

As still further aspects of the utility model: the sealing mechanism comprises a packing groove formed in the bottom end of the outer pipe body, sealing packing is arranged in the packing groove, the bottom end of the outer pipe body is connected with a pressing ring through a bolt, the top end of the pressing ring tightly presses the sealing packing in the packing groove, and the sealing packing is tightly attached to the outer wall of the inner pipe.

Compared with the prior art, the utility model has the beneficial effects that:

in the utility model, when the distance between the wellhead and the drilling platform varies due to the action of sea waves, the water-stop sleeve can drive the inner pipe to move up and down in the outer pipe, and the moving range of the inner pipe in the outer pipe is determined by the distance between the first positioning ring and the second positioning ring and the corresponding limiting rings, so before the diverter is installed, the installation height of the two limiting rings and the distance between the two limiting rings can be adjusted on the guide rod according to the calculation result, thereby being suitable for different water depths and being more convenient to use.

Drawings

Fig. 1 is a schematic structural view of a shunt.

Fig. 2 is a schematic structural view of a stop collar in the shunt.

Fig. 3 is an enlarged view at a in fig. 1.

The diverter assembly 1, the support shell 2, the telescopic joint assembly 3, the outer pipe body 4, the packing groove 5, the sealing packing 6, the compression ring 7, the inner pipe 8, the connecting flange 9, the guide rod 10, the first positioning ring 11, the second positioning ring 12, the limiting ring 13, the arc plate 14, the jackscrew 15, the positioning groove 16, the guide bar 17 and the guide groove 18.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, in an embodiment of the present utility model, a diverter includes a diverter assembly 1, an outer wall of the diverter assembly 1 is fixedly and hermetically connected with a support housing 2, a bottom end of the diverter assembly 1 is connected with an expansion joint assembly 3, the expansion joint assembly 3 includes an outer tube body 4, a top end of the outer tube body 4 is connected with a bottom end flange of the diverter assembly 1, an inner tube 8 is penetrated at a bottom end of the outer tube body 4, a sealing mechanism is provided at a bottom end of the outer tube body 4, a connecting flange 9 for connecting a water-stop sleeve is fixedly provided at a bottom end of the inner tube 8, a plurality of guide rods 10 are fixedly connected at a top of the connecting flange 9 in a circumferential distribution manner, a first positioning ring 11 and a second positioning ring 12 are fixedly connected to two ends of the outer wall of the outer tube body 4, perforations adapted to the guide rods 10 are formed in the first positioning ring 11 and the second positioning ring 12, two limiting rings 13 are fixedly connected together to the outer walls of the guide rods 10, and the two limiting rings 13 are located between the first positioning ring 11 and the second positioning ring 12 and the second positioning ring 13 are adjustable in position.

According to the utility model, by adopting the scheme, in the use process, the sealing mechanism is used for ensuring the tightness between the outer pipe body 4 and the inner pipe 8 so as to avoid the water leakage phenomenon at the joint of the outer pipe body 4 and the inner pipe 8, when the distance between the wellhead and the drilling surface changes due to the action of sea waves, the inner pipe 8 can be driven by the water-stop sleeve to move up and down in the outer pipe body 4, and the moving range of the inner pipe 8 in the outer pipe body 4 is determined by the spacing between the first positioning ring 11 and the second positioning ring 12 and the corresponding limiting rings 13, so that before the diverter is installed, the stroke of the telescopic joint assembly 3 can be adjusted only by adjusting the installation height of the two limiting rings 13 and the spacing between the two limiting rings 13 on the guide rod 10 according to the calculation result so as to adapt to different water depths, and the use is more convenient.

With specific reference to fig. 2, in one embodiment of the present utility model, the limiting ring 13 is composed of a plurality of arc plates 14, a plurality of arc plates 14 are fixedly adjacent end to end through bolts, through holes matched with the guide rod 10 are formed in the arc plates 14, the guide rod 10 passes through the corresponding through holes, jackscrews 15 are connected to the corresponding positions of the outer wall of the limiting ring 13 and the through holes in a matching manner through threaded holes, and the threaded holes are communicated with the corresponding through holes.

The arc plates 14 connected with each other through the bolts are convenient to disassemble or assemble on the guide rod 10 and the outer tube body 4, and the limiting ring 13 and the guide rod 10 can be fixed by only tightening the jackscrews 15 through the arrangement of the threaded holes and the jackscrews 15, so that the operation is simple and convenient.

With specific reference to fig. 1 and fig. 2, on the basis of the above embodiment, a plurality of positioning grooves 16 are equidistantly formed on the outer wall of the guide rod 10 along the length direction, and the threaded end of the jackscrew 15 abuts against the positioning grooves 16.

Through the cooperation of jackscrew 15 and constant head tank 16, can avoid spacing ring 13 to float on guide arm 10, and simple structure, the effect is stable.

With specific reference to fig. 2, further, on the basis of the above embodiment, the outer wall of the outer tube body 4 is circumferentially and fixedly connected with a plurality of guide bars 17, the guide bars 17 are in one-to-one correspondence with the arc plates 14, the outer wall of the arc plate 14 is provided with guide grooves 18, and the guide bars 17 are located in the corresponding guide grooves 18.

Through the cooperation of conducting bar 17 and arc 14, can play the guide effect to spacing ring 13 on outer body 4 to avoid taking place relative rotation between the two, and spacing ring 13 possesses certain positioning action to guide arm 10, consequently when inner tube 8 moves down, make behind the top of guide arm 10 break away from second holding ring 12, still can make guide arm 10 align the perforation that corresponds on the second holding ring 12 in the vertical direction, thereby when inner tube 8 moves up, can make the accurate insertion of guide arm 10 in the perforation that corresponds.

Referring to fig. 1 and 3, in an embodiment of the present utility model, the sealing mechanism includes a packing groove 5 formed at the bottom end of the outer tube 4, a sealing packing 6 is disposed in the packing groove 5, the bottom end of the outer tube 4 is connected with a compression ring 7 through a bolt, the top end of the compression ring 7 compresses the sealing packing 6 in the packing groove 5, and the sealing packing 6 is tightly attached to the outer wall of the inner tube 8.

By adopting the sealing mechanism, not only can a good sealing effect be achieved between the outer pipe body 4 and the inner pipe 8, but also the sealing filler 6 can be replaced regularly.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A shunt, characterized by: including shunt assembly (1), the outer wall fixedly connected with support housing (2) of shunt assembly (1), the bottom of shunt assembly (1) is connected with telescopic joint assembly (3), telescopic joint assembly (3) are including outer body (4), the top of outer body (4) and the bottom flange joint of shunt assembly (1), inner tube (8) are worn to be equipped with in the bottom of outer body (4), the bottom of outer body (4) is provided with sealing mechanism, the bottom fixed of inner tube (8) is provided with flange (9), the top of flange (9) is circumference distribution fixedly connected with a plurality of guide arms (10), the outer wall of outer body (4) is close to both ends department fixedly connected with first positioning ring (11) and second positioning ring (12) respectively, all set up on first positioning ring (11), second positioning ring (12) with the perforation of guide arm (10) looks adaptation, a plurality of outer wall fixedly connected with two spacing ring (13) jointly of guide arm (10), two spacing ring (13) are located between spacing ring (13) and second positioning ring (13).

2. A shunt according to claim 1, wherein: the limiting ring (13) is composed of a plurality of arc plates (14), a plurality of arc plates (14) are fixedly adjacent to each other through bolts in a head-to-tail mode, through holes matched with the guide rods (10) are formed in the arc plates (14), the guide rods (10) penetrate through the corresponding through holes, jackscrews (15) are connected to the corresponding positions of the outer walls of the limiting ring (13) and the through holes in a matched mode, and the threaded holes are communicated with the corresponding through holes.

3. A shunt according to claim 2, wherein: the outer wall of the guide rod (10) is provided with a plurality of positioning grooves (16) along the length direction at equal intervals, and the threaded end of the jackscrew (15) is propped in the positioning grooves (16).

4. A shunt according to claim 2, wherein: the outer wall of the outer tube body (4) is fixedly connected with a plurality of guide bars (17) in a circumferential distribution mode, the guide bars (17) are in one-to-one correspondence with the arc plates (14), guide grooves (18) are formed in the outer wall of the arc plates (14), and the guide bars (17) are located in the corresponding guide grooves (18).

5. A shunt according to claim 1, wherein: the sealing mechanism comprises a packing groove (5) formed in the bottom end of the outer pipe body (4), sealing packing (6) is arranged in the packing groove (5), the bottom end of the outer pipe body (4) is connected with a pressing ring (7) through a bolt, the top end of the pressing ring (7) tightly presses the sealing packing (6) in the packing groove (5), and the sealing packing (6) is tightly attached to the outer wall of the inner pipe (8).