CN216112666U - Universal connection pipe joint and manifold device thereof - Google Patents

Abstract

The utility model relates to the technical field of oil and gas drilling equipment, in particular to a universal connecting pipe joint and a manifold device thereof, wherein the universal connecting pipe joint comprises at least one pipe body segment, the planes of two end surfaces of the pipe body segment can form an included angle N, the N is less than 90 degrees, the two end surfaces of the pipe body segment are arranged into inclined planes, so that the azimuth angle of the other end surface can be correspondingly changed when the pipe body segment is rotated along one end surface, the other end surface can be adapted to the surface to be connected of the part to be connected, the azimuth adjusting structure is simple, the connection of the surface to be connected with azimuth angle deviation can be easily realized, the number of parts of the manifold device adopting the universal connecting pipe joint is small, and the azimuth angles of the two end surfaces can be conveniently adjusted in a self-adaptive manner on an operation site.

Description

Universal connection pipe joint and manifold device thereof

Technical Field

The utility model relates to the technical field of oil and gas drilling equipment, in particular to a universal connecting pipe joint and a manifold device thereof.

Background

In the field of oil, gas and other underground resource exploitation, in order to promote the exploitation of oil, gas and other underground resources, a drilling and exploitation system is often required to extract the resources, the drilling and exploitation system comprises a plurality of drilling and exploitation wells, a gas production tree is arranged at the wellhead of each drilling and exploitation well, fracturing fluid is conveyed to a fracturing manifold through a fracturing pipeline by a fracturing pump, and the fracturing fluid is conveyed to the gas production tree of one or more wellheads through the fracturing manifold.

At present, the fracturing pipeline of the ground part of the domestic fracturing site generally adopts a high-pressure union pipeline, the high-pressure union pipeline consists of a plurality of unions and a plurality of elbows, and adopts a structural form of union threaded connection and flange rigid connection, and the following technical problems mainly exist:

1. hammering and beating are needed during installation, so that the thread is easy to damage and break, and the safety performance is poor;

2. due to the difference between the actual distances between wells, between the well mouths and the fracturing manifolds, between the fracturing pumps and the fracturing manifolds and the installation directions of the surfaces to be connected, the length of the fracturing pipeline and the installation directions of the connection surfaces at two ends of the fracturing pipeline cannot be accurately preset, so that the fracturing pipelines cannot be uniformly prepared and need to be adjusted on site;

3. adopt rigid connection, when distance or position need be adjusted, generally through increasing angle logical, straight tube, turn to 90 at least twice to the pipeline, the process is more complicated, wastes time and energy, reduces work efficiency, and fluidic turns to many times, brings very big inconvenience for equipment fixing and fluid smooth transportation.

Therefore, there is a need for a solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the universal connecting pipe joint and the manifold device thereof are provided for solving the technical problem that the existing fracturing pipeline cannot be suitable for quick connection of a to-be-connected surface with a spatial azimuth angle difference.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a universal connection pipe joint comprises at least one pipe body section, wherein the planes of two end faces of the pipe body section can form an included angle N, and N is less than 90 degrees.

According to the universal connecting pipe joint, the two end faces of the pipe body segment are set to be opposite inclined faces, so that when the pipe body segment is integrally rotated along the end face on one side, the azimuth angle of the other end face can be correspondingly changed, the other end face can be adapted to the surface to be connected of the part to be connected, the azimuth adjusting structure is simple, and the connection of the surface to be connected with azimuth angle deviation can be easily realized.

As a preferable aspect of the present invention, the pipe body segment includes a pipe body and flanges provided at both ends of the pipe body. The flange plate is connected with the surface to be connected through the flange bolts and the nuts, the processing is convenient, the preparation cost of the pipe body segment is reduced, the drift diameter of the pipe body segment cannot be influenced, and the pipe body segment can meet the application condition of a large-drift-diameter large-flow fracturing pipeline.

In a preferred embodiment of the present invention, a rotary seal is provided between at least one of the flanges and the tubular body. The flange plate can rotate around the axis of the flange plate, the position of the connecting hole in the flange plate can be adjusted, and the flange plate can be connected with the surface to be connected in an adaptive mode.

As a preferable scheme of the utility model, the rotary sealing element comprises a bushing core and steel balls, the bushing core is detachably connected with the pipe body, the steel balls are arranged on the rear side of the bearing end face of the bushing core, and the steel balls are arranged around the pipe body. The steel ball is used for assisting the relative rotation of the flange plate and the pipe body, the compensation core is used for preventing external environment impurities from influencing the smooth rotation of the steel ball, and meanwhile, after the flange plate is stressed, force is transmitted to the pipe body through the compensation core, so that the sealing parts of the two flange plates in butt joint connection are kept stable, and the sealing effect is good.

As a preferable scheme of the utility model, the outer wall of the pipe body is provided with a notch matched with the bushing, the bushing is provided with a bending section, and the bending section extends into the notch. The sealed, dustproof effect of mending the core is further improved, and mend the core structure and not influenced by ring flange and body structure, and after the section of bending stretched into the notch, the ring flange can embolia from the body terminal surface, the installation of being convenient for.

As a preferred scheme of the utility model, the bushing is fixedly connected with the pipe body through a screw; mounting grooves matched with the steel balls are formed in the corresponding positions of the flange plate and the pipe body; the flange plate is provided with a mounting hole for mounting the steel ball, the mounting hole is communicated with the mounting groove, and a plug is arranged in the mounting hole in a matched mode. Through setting up the steel ball in the mounting groove, make after the steel ball assembly is accomplished, not only can play the function of supplementary ring flange and body flexible rotation relatively, can also play the function that the restriction flange dish removed along the body axis, make the relative position of ring flange and body fixed.

As a preferable aspect of the present invention, when the number of the pipe body segments is two or more, all the pipe body segments are sequentially connected in a butt joint manner by the flange plate to form a joint surface. The universal connecting pipe joint has the advantages that the plurality of pipe body sections are adopted for butt joint, so that the adjusting range of the azimuth angles of the two end faces of the universal connecting pipe joint is increased, the azimuth orientation of the to-be-connected surface can be adjusted by relatively rotating the two adjacent pipe body sections, and the to-be-connected surface adapts to the actual position deviation between the to-be-connected surfaces.

In a preferred embodiment of the present invention, a seal ring is embedded in the parting and joining surface.

As a preferred embodiment of the present invention, two of the flanges corresponding to the split and combination surfaces are respectively provided with a sealing groove adapted to the sealing ring.

As a preferable scheme of the present invention, the outer wall of the pipe body is provided with first tool holes, the flange plate is provided with second tool holes, the outer wall of the pipe body is annularly provided with ribs, and at least one of the first tool holes is arranged on the ribs. The flange plate and the pipe body can be rotated relatively through the rod body tool, and the direction angles of the two end faces of the universal connecting pipe joint can be adjusted conveniently.

In a preferred embodiment of the present invention, the pipe body is a straight pipe or a bent pipe. The universal connection pipe joint can be adaptively matched with the actual position relation of the to-be-connected surface according to actual conditions, the number of times of rotation adjustment of the pipe body segment is reduced, and the complexity of adjustment of the azimuth angles of the two end surfaces of the universal connection pipe joint is reduced.

Manifold assembly comprising at least one cardan joint as described above.

According to the manifold device, the universal connecting pipe joint is adopted, so that the number of parts between the surfaces to be connected is reduced, the azimuth angles of the two end surfaces can be adjusted in a self-adaptive mode, and the field self-adaptive adjustment of the azimuth angle is facilitated.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. according to the universal connecting pipe joint, the two end faces of the pipe body segment are arranged into the inclined planes, so that when the pipe body segment is rotated along one end face, the azimuth angle of the other end face can be correspondingly changed, the other end face can be adapted to the surface to be connected of the part to be connected, the azimuth adjusting structure is simple, and the connection of the surface to be connected with azimuth angle deviation can be easily realized;

2. according to the universal connecting pipe joint, the plurality of pipe body sections are butted, so that the adjusting range of the azimuth angles of the two end faces of the universal connecting pipe joint is increased, and the universal connecting pipe joint can adapt to the actual position deviation between the to-be-connected faces;

3. according to the universal connecting pipe joint, the rotary sealing element is arranged between at least one flange and the pipe body, so that the flange can rotate around the axis of the flange, the position of a connecting hole in the flange is adjusted, and the flange can be in adaptive connection with a surface to be connected;

4. according to the manifold device, the universal connecting pipe joint is adopted, so that the number of parts between the surfaces to be connected is reduced, the azimuth angles of the two end surfaces can be adjusted in a self-adaptive mode, and the field self-adaptive adjustment of the azimuth angle is facilitated.

Drawings

Fig. 1 is a schematic structural view of a universal joint pipe joint according to embodiment 2.

Fig. 2 is a schematic structural view of a section a-a in fig. 1.

Fig. 3 is a schematic structural view of a universal joint pipe joint according to embodiment 3.

Fig. 4 is a schematic structural view of a section B-B in fig. 3.

Fig. 5 is a partially enlarged structural view at C in fig. 4.

Fig. 6 is a schematic structural view of a manifold device according to embodiment 4.

Fig. 7 is a first application scenario of the manifold apparatus according to embodiment 4.

Fig. 8 is a second application scenario of the manifold apparatus according to embodiment 4.

Reference numerals: 1-pipe body segment, 11-pipe body, 111-notch, 112-rib, 12-flange plate, 121-installation groove, 122-installation hole, 123-plug, 2-rotary sealing element, 21-bushing, 211-bending section, 22-steel ball, 3-split surface, 4-sealing ring, 5-first tool hole, 6-second tool hole, 7-straight pipe joint, 8-angle pipe joint, 9-universal connecting pipe joint, 10-manifold device, 20-fracturing tree, 30-shunt manifold pry, 40-fracturing equipment and 50-main pipe high-low pressure manifold pry.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

As shown in fig. 1-2, a universal joint pipe joint includes a pipe segment 1, where the pipe segment 1 includes a pipe body 11 and flange plates 12 disposed at two ends of the pipe body 11, and planes of two end surfaces of the pipe segment 1 can form an included angle N, where N is less than 90 °.

The utility model provides a universal connection tube coupling, the terminal surface place plane of ring flange 12 that sets up at body 11 both ends forms contained angle N, make 1 terminal surface of body section for the inclined plane of relative other end terminal surface, when the whole body section of body 1 that rotates of one end terminal surface along body section 1, can the orientation of corresponding change other end terminal surface, the realization is to the adjustment of this universal connection tube coupling both ends face azimuth angle, make this universal connection tube coupling rotate the adjustment according to the azimuth angle deviation of treating between the connection face, moreover, the steam generator is simple in structure, the adjustment is convenient, can effectively reduce the part quantity of treating between the connection face.

The universal connecting pipe joint is applied to a fracturing pipeline between a wellhead position error and well site equipment, smooth connection between two faces to be connected caused by equipment installation errors can be effectively solved, installation and adjustment are convenient, and structural support is provided for quick connection of an ultrahigh pressure large-caliber fracturing pipeline.

Preferably, the pipe body 11 is a straight pipe or a bent pipe.

Specifically, in this embodiment, it is preferable that the pipe body 11 is a straight pipe, end faces of both ends of the pipe body 11 are coplanar with end faces of the flange 12, and the flange 12 is inclined by a boss formed on an outer wall of the pipe body 11.

Specifically, preferred body 11 one end is the perpendicular plane of 11 axes of relative body in this embodiment, and the other end is the inclined plane that is less than 90 contained angles for 11 axes of relative body for can be connected the different ring flanges in body 1 both ends with treating to connect the face through adopting single body segment 1, realize having the adaptation connection of the face of treating of different azimuth angles.

Specifically, according to actual conditions, the end faces of the two ends of the pipe body 11 can be set to be inclined planes relative to the axis of the pipe body 11, and/or the pipe body 11 is an elbow pipe with a certain radian in the axis, so that the application range of the universal connection pipe joint is further expanded.

Example 2

As shown in fig. 1 to 5, a universal joint coupling of the present embodiment has the same structure as that of embodiment 1, except that: at least one the ring flange 12 with set up rotary seal 2 between the body 11, rotary seal 2 is including mending core 21 and steel ball 22, mend core 21 with body 11 detachable connects, steel ball 22 sets up mend the rear side of core 21 load terminal surface, mend the load terminal surface of core for mending the core one side that is close to the body terminal surface, a plurality of steel ball ring 22 is around body 11 sets up.

The universal connection pipe joint of this embodiment adopts the structure formation body festival section 1 of ring flange 12 and the combination of body 11, makes ring flange 12 rotate around self axis, realizes the position adjustment to connecting hole on ring flange 12, makes ring flange 12 can realize through the rotation of self with treat the adaptation connection of being connected the face.

Specifically, the rotary sealing element 2 is arranged between each of the flanges 12 at the two ends of the preferred pipe body 11 and the pipe body 11, so that the two flanges 12 of the pipe body segment 1 can be adjusted according to the actual situation, and can be smoothly connected with the to-be-connected surface through bolts and nuts.

Specifically, the bushing 21 is connected with the pipe body 11 through a radially arranged screw, and the bushing 21 is an annular structural member.

Preferably, the outer wall of the pipe body 11 is provided with a notch 111 matched with the bushing 21, the bushing 21 is provided with a bent section 211, and the bent section 211 extends into the notch 111. Further improving the sealing and dustproof effects of the bushing 21.

Preferably, the bushing 21 can also be formed by combining a plurality of split structural members, in the installation process, the bent section 211 of the bushing 21 extends into the notch 111, and the flange 12 is sleeved in from the end face of the pipe body 11, so that the installation is more convenient.

Preferably, the flange 12 and the pipe body 1 are provided with mounting grooves 121 adapted to the steel balls 22 at corresponding positions.

Specifically, the flange 12 is provided with a first groove at a position corresponding to the installation position of the steel ball 22, the pipe body 1 is provided with a second groove at a position corresponding to the installation position of the steel ball 22, and the first groove and the second groove are buckled to form an installation groove 121 matched with the steel ball 22.

Specifically, the first groove is an annular groove coaxial with the flange 12, and the second groove is a hemispherical groove matched with the shape of the steel ball 22, or the first groove is a hemispherical groove matched with the shape of the steel ball 22, and the second groove is an annular groove coaxial with the pipe body 1, or both the first groove and the second groove are annular grooves, so that the mounting groove 121 matched with the steel ball 22 is formed as a raceway.

Preferably, the flange 12 is provided with a mounting hole 122 for mounting the steel ball 22, the mounting hole 122 is communicated with the mounting groove 121, a plug 123 is disposed in the mounting hole 122, the steel ball 22 can be mounted between the flange 12 and the pipe body 11 through the mounting hole 122 of the flange 12, the mounting hole 122 is plugged by a limiting member such as the plug 123 and a snap spring, after the mounting hole 122 is plugged, the position of the steel ball 22 is fixed, and the relative position between the flange 12 and the pipe body 11 is fixed.

Preferably, the outer wall of the pipe body 11 is provided with a first tool hole 5, the flange 12 is provided with a second tool hole 6, the outer wall of the pipe body 11 is annularly provided with a rib 112, and at least one first tool hole 5 is arranged on the rib 112. The flange plate 12 and the pipe body 11 can be rotated relatively by a rod body tool, and the azimuth angles of the two end faces of the universal connecting pipe joint can be conveniently adjusted.

Example 3

As shown in fig. 3 to 5, the universal connection pipe joint of the present embodiment includes two pipe body segments 1 according to embodiment 2, all the pipe body segments 1 are sequentially connected in a butt joint manner by flanges 12 to form a joining and joining surface 3, a sealing ring 4 is embedded in the joining and joining surface 3, and the sealing ring 4 is a metal sealing ring.

The universal connection pipe joint of this embodiment, divide 3 two that correspond of facial features the seal groove with 4 adaptations of sealing ring is processed respectively on the butt joint face of ring flange 12, adopts the butt joint of a plurality of body sections 1, makes the adjustment range of the azimuth angle of this universal connection pipe joint both ends face increase, can with wait to connect the actual position deviation between the face and suit.

In particular, the connection holes of the flanges 12 of the two pipe body segments 1 that are connected in a butt joint manner are preferably through holes or adaptive blind holes.

Example 4

As shown in fig. 6, the manifold assembly comprises at least one universal joint 9 as described above.

The manifold device of this embodiment can adaptively adjust the azimuth angles of the two end surfaces by using the universal connection pipe joint 9 of embodiment 1, embodiment 2, or embodiment 3, and facilitates the on-site adaptive adjustment of the azimuth angle of the surface to be connected.

Specifically, the manifold device 10 of the present embodiment preferably further includes a straight pipe joint 7 and an angle pipe joint 8, so that the overall length of the manifold device is extended by the straight pipe joint 7, the flow channel direction of the manifold device 10 is changed by the angle pipe joint 8, the quick connection between the surfaces to be connected can be realized by fewer universal connection pipe joints 9, and the manufacturing cost of the manifold device 10 is reduced.

As shown in fig. 7, the manifold apparatus 10 is applied between the frac tree 20 and the manifold skid 30.

As shown in fig. 8, the manifold apparatus 10 is not only applied between the fracturing tree 20 and the manifold skid 30, but the manifold apparatus 10 may also be applied between the fracturing apparatus 40 and the main pipeline high and low pressure manifold skid 50, between adjacent manifold skids 30, and between the manifold skid 30 and the high and low pressure manifold skid 50.

Specifically, the manifold device 10 of the present embodiment can be adapted to a scenario related to complex fluid pipeline transportation, such as fracturing fluid transportation, diversion, confluence, slurry transportation, etc., in the oil drilling industry, and particularly can be adapted to fast and stable connection between two surfaces to be connected with attitude deviation, and can reduce vibration of a pipeline system using the manifold device 10 and improve stability of complex fluid high-pressure transportation by matching between connection portions of the manifold device 10.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The universal connecting pipe joint is characterized by comprising at least one pipe body segment (1), wherein the planes of two end faces of the pipe body segment (1) can form an included angle N, and N is less than 90 degrees.

2. A universal joint according to claim 1, wherein said segment (1) comprises a tubular body (11) and flanges (12) provided at both ends of said tubular body (11).

3. A universal joint according to claim 2, wherein a rotary seal (2) is provided between at least one of said flanges (12) and said body (11).

4. The universal joint pipe joint according to claim 3, wherein the rotary seal member (2) comprises a complementary core (21) and steel balls (22), the complementary core (21) is detachably connected with the pipe body (11), the steel balls (22) are arranged at the rear side of the bearing end face of the complementary core (21), and a plurality of the steel balls (22) are arranged around the pipe body (11).

5. The universal connection pipe joint according to claim 4, wherein the outer wall of the pipe body (11) is provided with a notch (111) matched with the complementary core (21), the complementary core (21) is provided with a bent section (211), and the bent section (211) extends into the notch (111); the bushing (21) is fixedly connected with the pipe body (11) through a screw; mounting grooves matched with the steel balls (22) are formed in the corresponding positions of the flange (12) and the pipe body (11); the flange plate (12) is provided with a mounting hole for mounting a steel ball (22), the mounting hole is communicated with the mounting groove, and a plug is arranged in the mounting hole in a matched mode.

6. A universal joint according to any of claims 2 to 5 wherein when there are two or more segments (1), all segments (1) are joined end to end by flange (12) to form a joint (3).

7. The universal connection pipe joint according to claim 6, wherein the joint surface (3) is embedded with a sealing ring (4), and two flanges (12) corresponding to the joint surface (3) are respectively provided with a sealing groove adapted to the sealing ring (4).

8. A universal joint according to claim 6, wherein the outer wall of the tubular body (11) is provided with first tool holes (5), the flange (12) is provided with second tool holes (6), the outer wall of the tubular body (11) is provided with ribs (112) circumferentially, and at least one of the first tool holes (5) is provided on the rib (112).

9. A universal joint according to claim 2, wherein said body (11) is a straight or curved tube.

10. Manifold assembly, characterized in that it comprises at least one cardan joint according to any of claims 1 to 9.

Images