CN217713973U

CN217713973U - Inner framework of seabed oil and gas pipeline and seabed oil and gas pipeline

Info

Publication number: CN217713973U
Application number: CN202221392458.2U
Authority: CN
Inventors: 周益天
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-11-01
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses an inner frame and seabed oil and gas transmission pipeline of seabed oil and gas transmission pipeline, the inner frame of seabed oil and gas transmission pipeline forms through a plurality of skeleton sub-parts lock joints, the skeleton sub-part is the cylindricality structure, the both ends of cylindricality structure are provided with inside flanging and flanging respectively, are located the target skeleton sub-part of middle optional position, the flanging of target skeleton sub-part with the inside flanging lock joint of the adjacent skeleton sub-part of target skeleton sub-part upside, the inside flanging of target skeleton sub-part with the flanging lock joint of the adjacent skeleton sub-part of target skeleton sub-part downside. The embodiment of the utility model provides a through the pressure-bearing of inner frame realization pipeline, simultaneously, adopt the form of a plurality of skeleton sub-piece lock joints, can guarantee the flexible nature of seabed oil gas pipeline.

Description

Inner framework of seabed oil and gas pipeline and seabed oil and gas pipeline

Technical Field

The utility model relates to a seabed oil or gas transmission technical field, concretely relates to inner frame and seabed oil and gas transmission pipeline of seabed oil and gas transmission pipeline.

Background

The submarine oil hose is an oil pipeline applied to the seabed, and needs to have high deep water pressure resistance and high-salinity seawater corrosion resistance, and has long service life. The existing oil delivery hose is generally made of two types, one type is traditional metal, the pressure resistance is good, but the hose is easy to corrode after being soaked in seawater for a long time, and the common engineering material is difficult to bear the high-pressure deep water pressure and short in service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inner frame of seabed oil and gas pipeline, its pressure-bearing through inner frame realization pipeline simultaneously, adopts the form of a plurality of skeleton sub-parts lock joints, can guarantee seabed oil and gas pipeline's flexible.

In order to achieve the above object, the embodiment of the utility model discloses a first aspect discloses an inner frame of seabed oil and gas pipeline, and it forms through a plurality of skeleton sub-spare lock joints, the skeleton sub-spare is the cylindricality structure, the both ends of cylindricality structure are provided with in-turned edge and flanging respectively, are located the target skeleton sub-spare of middle optional position, the flanging of target skeleton sub-spare with the in-turned edge lock joint of the adjacent skeleton sub-spare of target skeleton sub-spare upside, the in-turned edge of target skeleton sub-spare with the flanging lock joint of the adjacent skeleton sub-spare of target skeleton sub-spare downside.

As an optional implementation manner, in the first aspect of the present invention, a first gap is provided between the inner flange and the outer flange that are fastened to each other.

As an optional implementation manner, in the first aspect of the present invention, the outer edge of the distal end of the flanging is provided with a convex rib.

As an optional implementation manner, in the first aspect of the present invention, the skeleton member is cold-bending deformed stainless steel, and the stainless steel is 316L stainless steel.

As an optional implementation manner, in the first aspect of the present invention, the skeleton member includes a first cylinder and a second cylinder, the first cylinder and the second cylinder are fixedly connected or integrally formed, an inner flange is disposed at an end of the first cylinder away from the second cylinder, and an outer flange is disposed at an end of the second cylinder away from the first cylinder.

As an optional implementation manner, in the first aspect of the present invention, the inner diameter of the first cylinder is larger than the inner diameter of the second cylinder.

As an optional implementation manner, in the first aspect of the present invention, a second gap is provided between the first cylinder and the corresponding inner flange, and the second gap is greater than the thickness of the outer flange corresponding to the second cylinder.

As an optional implementation manner, in the first aspect of the present invention, a third gap is provided between the second cylinder and the corresponding outer flange, and the third gap is greater than the thickness of the inner flange corresponding to the first cylinder.

The embodiment of the utility model provides an aspect two discloses a seabed oil and gas pipeline, it includes the hose, seabed oil and gas pipeline still includes the embodiment of the first aspect the seabed oil and gas pipeline's inner frame, the inner frame cover in the hose, and with the size looks adaptation of hose.

As an optional embodiment, in the second aspect of the present invention, the hose is a rubber hose.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides an inner frame through a plurality of skeleton sub-piece lock joints formation uses the inner frame to promote the crushing resistance of pipeline as the interior support piece of seabed oil gas pipeline on the one hand to use ordinary rubber tube also can regard as the outer hose of seabed oil gas pipeline, and on the other hand uses the form of a plurality of skeleton sub-piece lock joints, can be so that have certain flexible nature between the two sections skeleton sub-pieces, guarantees the installation demand of seabed oil gas pipeline.

Drawings

Fig. 1 is a schematic structural diagram of an inner framework of a seabed oil and gas pipeline according to an embodiment of the present invention;

FIG. 2 is a schematic view of the construction of the skeletal sub-member of FIG. 1;

FIG. 3 is a schematic view of the buckling structure of two adjacent frame members shown in FIG. 1;

FIG. 4 is an enlarged view of area A of FIG. 3;

fig. 5 is a schematic structural diagram of a submarine oil and gas pipeline according to an embodiment of the present invention.

In the figure: 10. an inner skeleton; 11. a skeleton sub-member; 111. a first cylinder; 1111. inward flanging; 112. a second cylinder; 1121. flanging; 11211. a rib is protruded; 12. a first backbone sub-element; 121. a third cylinder; 1211. the inner flanging of the first framework sub-piece; 13. a second spine member; 132. a fourth cylinder; 1321. the outward flanging of the second framework sub-piece; 13211. a first rib; 20. a hose.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connecting" are to be construed broadly, e.g., as meaning fixedly connected, connected through an intervening medium, connected internally between two elements, or in an interactive relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Referring to fig. 1-2, an inner frame 10 of a subsea oil and gas pipeline is formed by fastening a plurality of frame sub-members 11, where the frame sub-members 11 are hollow cylindrical structures, two sides of the cylindrical structures are respectively provided with an inner flange 1111 and an outer flange 1121, and two adjacent frame sub-members are assembled by matching the inner flange 1111 and the outer flange 1121.

Specifically, for the remaining target skeleton sub-pieces located at any position in the middle (the target skeleton sub-piece refers to the skeleton sub-piece located at any position between the two skeleton sub-pieces located at the two ends) except the two skeleton sub-pieces at the two ends, the matching relationship between the target skeleton sub-piece and the adjacent skeleton sub-piece is as follows: the outer flanging of the target framework sub-piece is fastened with the inner flanging of the framework sub-piece adjacent to the upper side of the target framework sub-piece, and the inner flanging of the target framework sub-piece is fastened with the outer flanging of the framework sub-piece adjacent to the lower side of the target framework sub-piece.

In a preferred embodiment of the present invention, please refer to fig. 2, for the frame sub-member, it is made of a cold-bending type stainless steel with a shape of 316L, and the structure of the frame sub-member is mainly composed of two hollow cylinders, which are respectively marked as a first cylinder 111 and a second cylinder 112, wherein the radius of the first cylinder 111 is greater than the radius of the second cylinder 112.

The first cylinder 111 and the second cylinder 112 are connected by integral molding, or fixedly connected by welding or the like. The end of the first cylinder 111 away from the second cylinder 112 extends inward to form a flange 1111, and a second gap is formed between the flange 1111 and the first cylinder 111, so that the flange 1121 of other skeleton sub-components can be inserted into the flange 1111 and the first cylinder 111 to realize fastening.

Similarly, the end of the second cylinder 112 away from the first cylinder 111 extends outward to form a flange 1121, and a third gap is formed between the flange 1121 and the second cylinder 112, so that the flange 1111 of other skeleton sub-components can be inserted between the flange 1121 and the second cylinder 112 for fastening.

It can be understood that, in order to form a certain angle bend at the fastening position, a certain gap, denoted as a first gap, is preferably formed between the inner flange 1111 and the outer flange 1121, which are fastened and matched with each other, and therefore, the second gap is larger than the thickness of the outer flange 1121 fastened and matched with the second gap; the third gap is larger than the thickness of the inner flange 1111 that is fastened and matched with the third gap.

Meanwhile, in order to prevent the fastening from falling off, a rib 11211 is disposed on an outer edge of a distal end of the flange 1121, which is an end away from the end where the flange 1121 and the second cylinder 112 are connected. The rib 11211 is annular and is spaced from the third gap on two sides of the flange 1121.

Referring to fig. 3 and 4, a matching structure of two adjacent frame sub-members is shown, and the two frame sub-members are respectively denoted as a first frame sub-member 12 and a second frame sub-member 13, wherein an inward flange 1211 of the first frame sub-member is matched with an outward flange 1321 of the second frame sub-member, specifically, the inward flange 1211 of the first frame sub-member is located inside the third cylinder 121, the outward flange 1321 of the second frame sub-member is located outside the fourth cylinder 132, the outward flange 1321 of the second frame sub-member is inserted into a gap between the inward flange 1211 of the first frame sub-member and the third cylinder 121 to achieve fastening, the first rib 13211 is extruded on an inner sidewall of the third cylinder 121, and a certain gap, that is, the first gap exists between the inward flange 1211 of the first frame sub-member and the outward flange 1321 of the second frame sub-member.

Adopt the structure of a plurality of skeleton sub-spares lock joint formation inner frame, guaranteed to play support and resistance to compression effect in seabed oil and gas pipeline on the one hand, on the other hand, can realize certain angle bending in lock joint department to reach seabed oil and gas pipeline's installation demand.

Example two

Referring to fig. 5, a subsea oil and gas pipeline includes a hose 20 and the inner frame 10 according to the first embodiment, wherein the inner frame 10 is sleeved in the hose 20 and is adapted to the size of the hose 20.

Hose 20 can adopt the not perishable rubber tube to realize, plays the resistance to compression effect through inner frame 10, embolias the hose after the mutual lock joint of skeleton sub-spare according to the length of hose 20 to realize the assembly, can also set up the protective layer between inner frame 10 and the hose 20, prevent that inner frame 10 from causing the damage of hose 20 when cup jointing in hose 20. It is preferable that the interval between the inner frame 10 and the hose 20 is not more than 1cm, thereby securing the strength of the pipe.

In addition, the inner frame 10 structure formed by buckling the frame sub-pieces can reduce the transportation cost due to the advantages of easy transportation and the like.

Finally, it should be noted that: the above embodiments are only optional embodiments of the present invention, and the protection scope of the present invention cannot be defined thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an inner frame of seabed oil and gas pipeline which characterized in that, it forms through a plurality of skeleton sub-spare lock joints, the skeleton sub-spare is the cylindricality structure, the both ends of cylindricality structure are provided with inside flanging and flanging respectively, are located the target skeleton sub-spare of middle optional position, the flanging of target skeleton sub-spare with the inside flanging lock joint of the adjacent skeleton sub-spare of target skeleton sub-spare upside, the inside flanging of target skeleton sub-spare with the flanging lock joint of the adjacent skeleton sub-spare of target skeleton sub-spare downside.

2. The endoskeleton of a subsea hydrocarbon pipeline as recited in claim 1, wherein a first gap is provided between the fastened inner and outer flanges.

3. The endoskeleton of a subsea hydrocarbon pipeline as recited in claim 1, wherein the outer edge of the distal end of the flange is provided with a rib.

4. The endoskeleton of a subsea hydrocarbon pipeline of claim 1, wherein the skeletal sub-pieces are cold-bent stainless steel and the stainless steel is 316L stainless steel.

5. The internal framework of a subsea hydrocarbon pipeline as claimed in any of claims 1-4, wherein the framework sub-member comprises a first cylinder and a second cylinder, the first cylinder and the second cylinder are fixedly connected or integrally formed, an inner flange is provided at one end of the first cylinder away from the second cylinder, and an outer flange is provided at one end of the second cylinder away from the first cylinder.

6. The endoskeleton of a subsea hydrocarbon pipeline according to claim 5, wherein the first cylinder has an inner diameter that is greater than an inner diameter of the second cylinder.

7. The endoskeleton of a subsea hydrocarbon pipeline as recited in claim 5, wherein a second gap is provided between the first cylinder and its corresponding inner flange, the second gap being greater than the thickness of the corresponding outer flange of the second cylinder.

8. The endoskeleton of a subsea hydrocarbon pipeline as recited in claim 5, wherein a third gap is provided between the second cylinder and its corresponding flange, said third gap being greater than the thickness of the corresponding flange of the first cylinder.

9. A subsea hydrocarbon pipeline comprising a flexible pipe, wherein the subsea hydrocarbon pipeline further comprises an inner frame according to any of claims 1-8, the inner frame being nested within the flexible pipe and adapted to the dimensions of the flexible pipe.

10. The subsea hydrocarbon pipeline of claim 9, where the hose is a hose.