Connecting device for binding sub-pipelines on main pipeline in parallel

Abstract

The invention discloses a main pipeline parallel binding sub-pipeline connecting device which comprises a saddle body, one side of the saddle body abuts against the main pipeline, a saddle outer baffle is arranged at the end, away from the main pipeline, of the saddle body, and a sub-pipeline is arranged between the saddle outer baffle and the saddle body. A binding belt is connected in the circumferential direction of the saddle body so that the main pipeline and the sub-pipeline can be fixed to the saddle body, a gasket is connected to the end of the binding belt, a screw is connected to the gasket, the tightness of the binding belt is adjusted through the screw, and a nut is connected to the end of the screw so that the main pipeline and the sub-pipeline can be bound to the saddle body. According to the connecting device for parallel binding of the main pipeline and the sub-pipelines, the multiple saddle bodies are connected between the main pipeline and the sub-pipelines at intervals, the sub-pipelines and the saddle bodies are fixed through the saddle outer baffles, the binding belts are bound in the circumferential directions of the saddle bodies, the main pipeline and the sub-pipelines are fixedly connected, the construction efficiency is improved, and the construction cost is reduced. The installation cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of submarine pipelines in marine engineering, and in particular relates to a connecting device for parallel binding of sub-pipelines with a main pipeline. Background Art

[0002] Faced with marginal oil fields with low development efficiency, new and efficient pipeline systems are needed to reduce engineering development costs and improve the value of pipeline transportation. In mature oil fields that have been explored and operated for many years, with the continuous reduction of integrated development, the development of marginal oil fields has gradually become a focus.

[0003] It is difficult to reach the economic threshold for oil field development through conventional technical means and management methods for the development of marginal oil fields or secondary development of mature oil fields. However, the key submarine pipeline facilities, which account for about half of the project investment, will become the key to technological breakthroughs and oil field development by adopting targeted submarine pipeline technology innovation to reduce project development costs.

[0004] Therefore, it is urgent to design a connection device for binding the sub-pipes in parallel with the main pipeline to solve the above-mentioned problem of binding the sub-pipes in parallel with the main pipeline. Summary of the invention

[0005] In order to solve the technical problem of reducing the cost of engineering development by adopting targeted submarine pipeline technology innovation to develop marginal oil fields or secondary development of mature oil fields mentioned in the background technology, a connection device for parallel binding of main pipelines to sub-pipelines is provided to solve the problem of parallel binding of main pipelines to sub-pipelines.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the connection device for the main pipeline and the sub-pipeline in parallel of the present invention is as follows: A connecting device for a main pipe and a sub-pipe in parallel, comprising a saddle body, one side of the saddle body abutting against the main pipe, an outer saddle stopper at one end of the saddle body away from the main pipe, a sub-pipeline arranged between the outer saddle stopper and the saddle body, a binding belt connected along the circumference of the saddle body to fix the main pipe and the sub-pipeline on the saddle body, a washer connected to the end of the binding belt, a screw rod connected to the washer, the tightness of the binding belt is adjusted by the screw rod, and a nut is connected to the end of the screw rod to bind the main pipe and the sub-pipeline to the saddle body.

[0007] Furthermore, a first slot is provided on the saddle body, and the main pipe is abutted in the first slot.

[0008] Furthermore, a second notch and a third notch are spaced apart from each other on one side of the saddle body away from the first notch.

[0009] Furthermore, the first sub-pipe is abutted in the second slot, and a first saddle outer stop is provided on the second slot so that the first sub-pipe is stably arranged in the second slot.

[0010] Furthermore, a second sub-pipe is abutted in the third slot, and a second saddle outer stop is provided on the third slot so that the second sub-pipe is stably arranged in the third slot.

[0011] Furthermore, a plurality of binding straps are bound along the circumference of the saddle body, and the binding straps abut against the first saddle outer block, the second saddle outer block and the main pipe away from the saddle body, so that the main pipe, the first sub-pipe and the second sub-pipe are stably arranged on the saddle body.

[0012] Furthermore, one end of the plurality of binding straps is sleeved on the first washer, and one end of the plurality of binding straps away from the first washer is sleeved on the second washer.

[0013] Furthermore, the first washer and the second washer are provided with corresponding screw holes, a screw is screwed on the screw holes of the first washer and the second washer, and nuts are screwed on both ends of the screw to adjust the tension of the binding belt.

[0014] Furthermore, a rubber gasket is provided between the main pipe and the first notch to avoid damaging the anti-corrosion coating on the surface of the main pipe.

[0015] Furthermore, the main pipe, the first sub-pipe and the second sub-pipe abutting against the saddle body are parallel to each other.

[0016] The connecting device of the main pipeline and the sub-pipeline in parallel of the present invention has the following advantages: By connecting multiple saddle bodies at intervals between the main pipeline and the sub-pipeline, fixing the sub-pipeline to the saddle body through the saddle outer gear, and tying the lashing belt along the circumference of the saddle body, the main pipeline and the sub-pipeline are fixedly connected, which improves construction efficiency, saves installation costs, reduces engineering development costs, and saves sea area use applications and scope of use. This application assembles three submarine pipelines with different media functions at a time through a specific saddle structure, at a certain interval, on the offshore pipe-laying operation line, and lowers them to the predetermined seabed through the pipe-laying vessel to complete the sea pipe laying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the connecting device of the main pipeline and the sub-pipeline in parallel according to the present invention; Figure 2 This is a schematic diagram of the connection device of the main pipeline and the sub-pipeline in parallel being tied and laid on the seabed on the ship operation line; Figure 3 It is a cross-sectional schematic diagram of a connecting device for binding sub-pipes in parallel with a main pipe according to the present invention.

[0018] Description of the markings in the figure: 1. Saddle body; 2. Main pipe; 3. First sub-pipe; 4. Second sub-pipe; 5. Binding belt; 6. First notch; 7. Second notch; 8. Third notch; 9. First saddle outer stop; 10. Second saddle outer stop; 11. First washer; 12. Second washer; 13. Screw; 14. Nut; 15. Rubber gasket. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 To Attachment Figure 3 The invention describes a connecting device for binding sub-pipes in parallel with a main pipe.

[0022] like Figure 1 and Figure 2 As shown, the connecting device for binding the main pipe in parallel with the sub-pipe in the present invention includes a saddle body 1, one side of the saddle body 1 is abutted against the main pipe 2, an outer saddle stop is provided at the end of the saddle body 1 away from the main pipe 2, a sub-pipe is provided between the outer saddle stop and the saddle body, a binding belt 5 is connected along the circumference of the saddle body to fix the main pipe 2 and the sub-pipe on the saddle body 1, a washer is connected to the end of the binding belt 5, a screw 13 is connected to the washer, the tightness of the binding belt 5 is adjusted by the screw 13, and a nut 14 is connected to the end of the screw 13 to bind the main pipe 2 and the sub-pipe on the saddle body 1.

[0023] By connecting multiple saddle bodies 1 between the main pipeline 2 and the sub-pipeline at intervals, fixing the sub-pipeline to the saddle body through the saddle outer gear, and tying the lashing belt 5 along the circumference of the saddle body 1, the main pipeline 2 and the sub-pipeline are fixedly connected, which improves the construction efficiency, saves installation costs, reduces engineering development costs, and saves sea area use applications and scope of use. This application assembles three submarine pipelines with different media functions at a time through a specific saddle structure, at a certain interval, on the offshore pipe-laying operation line, and lowers them to the predetermined seabed through the pipe-laying vessel to complete the sea pipe laying operation.

[0024] Further, if Figure 1 As shown, a first slot 6 is provided on the saddle body 1, and the main pipe 2 is abutted in the first slot 6; a second slot 7 and a third slot 8 are spaced apart on the side of the saddle body 1 away from the first slot 6; a first sub-pipe 3 is abutted in the second slot 7, and a first saddle outer stop 9 is provided on the second slot 7 to ensure that the first sub-pipe 3 is stably arranged in the second slot 7; a second sub-pipe 4 is abutted in the third slot 8, and a second saddle outer stop 10 is provided on the third slot 8 to ensure that the second sub-pipe 4 is stably arranged in the third slot 8.

[0025] In this embodiment, preferably, a first slot 6 matching the shape of the main pipe 2 is opened on one side of the saddle body 1 so that the main pipe 2 abuts against the first slot 6, and a second slot 7 and a third slot 8 are opened on the side of the saddle body 1 away from the first slot 6, and the second slot 7 and the third slot 8 are arranged at intervals.

[0026] Preferably, the first sub-pipe 3 is abutted in the second slot 7, and the second slot 7 is provided with a first notch matching the shape of the first saddle outer stop 9, and the first saddle outer stop 9 abuts on the first notch, so that the first sub-pipe 3 is stably set in the second slot 7; the second sub-pipe 4 is abutted in the third slot 8, and the third slot 8 is provided with a second notch matching the shape of the second saddle outer stop 10, and the second saddle outer stop 10 abuts on the second notch, so that the second sub-pipe 4 is stably set in the third slot 8.

[0027] Further, if Figure 1 As shown, multiple binding straps 5 are tied along the circumference of the saddle body 1, and the binding straps 5 are abutted against the first saddle outer block 9, the second saddle outer block 10 and the side of the main pipe 2 away from the saddle body 1, so that the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4 are stably arranged on the saddle body 1; one end of the multiple binding straps 5 is sleeved on the first washer 11, and the end of the multiple binding straps 5 away from the first washer 11 is sleeved on the second washer 12.

[0028] In the present embodiment, preferably, a plurality of binding straps 5 are tied along the circumference of the saddle body 1, and the plurality of binding straps 5 are abutted against the first saddle outer stop 9, the second saddle outer stop 10 and the side of the main pipe 2 away from the saddle body 1, so that the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4 are stably connected to the saddle body 1, thereby achieving a fixed connection of the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4 as a whole.

[0029] Preferably, the first washer 11 and the second washer 12 have the same shape and size, one end of the multiple binding straps 5 is sleeved on the first washer 11, and the ends of the multiple binding straps 5 away from the first washer 11 are sleeved on the second washer 12, so that the first saddle outer block 9 and the second saddle outer block 10 can be stably abutted against the saddle body 1.

[0030] Further, if Figure 1 and Figure 3 As shown, corresponding screw holes are opened on the first washer 11 and the second washer 12, and the screw 13 is screwed on the screw holes of the first washer 11 and the second washer 12. Nuts 14 are screwed on both ends of the screw 13 to adjust the tension of the binding belt 5; a rubber gasket 15 is provided between the main pipe 2 and the first slot 6 to avoid damaging the anti-corrosion coating on the surface of the main pipe 2; the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4 abutting against the saddle body 1 are parallel to each other.

[0031] In this embodiment, preferably, screw holes are respectively provided on the first washer 11 and the second washer 12, and the screw holes on the first washer 11 and the second washer 12 correspond to each other. The screw 13 is screwed on the screw holes of the first washer 11 and the second washer 12, and nuts 14 are screwed on both ends of the screw 13. By adjusting the distance between the first washer 11 and the second washer 12 screwed on the screw 13, the tension of the binding belt 5 can be adjusted.

[0032] A rubber gasket 15 is provided between the main pipe 2 and the first slot 6 to avoid damaging the anti-corrosion coating on the surface of the main pipe. Preferably, the outer walls of the first sub-pipe 3 and the second sub-pipe 4 are coated with an anti-corrosion coating, and the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4 abutting against the saddle body 1 are parallel to each other.

[0033] A single main pipeline 2 is realized, and the first sub-pipeline 3 and the second sub-pipeline 4 can be tied together at the same time. The main pipeline 2 is used for the transportation of main oil and gas media, main seawater, etc. The first sub-pipeline 3 and the second sub-pipeline 4 transport different media according to the different transport media of the main pipeline 2: preferably, it is used for the injection of wellhead corrosion inhibitors and asphaltene into the oil and gas medium transport pipeline, and for the injection of antimicrobial agents and scale inhibitors into the water injection pipeline.

[0034] The working steps of the connection device for the main pipeline and the sub-pipeline in parallel in this application are as follows: S1. Determine the outer diameter, wall thickness, and external anti-corrosion coating of the main pipeline 2 according to the oilfield development and transportation medium resources; S2. Determine the outer diameter, wall thickness, outer anti-corrosion coating, etc. of the first sub-pipeline 3 and the second sub-pipeline 4 according to the requirements of the injected medium; S3. According to the analysis, determine the relative position relationship between the first sub-pipeline 3, the second sub-pipeline 4 and the main pipe 2 (the first sub-pipeline 3 and the second sub-pipeline 4 are located at the two o'clock and ten o'clock directions of the main pipe 2, respectively); S4. Design a saddle structure according to the relative positions of the main pipe 2, the first sub-pipe 3 and the second sub-pipe 4; S5. Analyze and determine the material, thickness, height, and lashing force range of the saddle body 1; S6. Design the structures of the first saddle outer block 9 and the second saddle outer block 10; S7. Select and design the material of the rubber gasket 15 according to the stress of the saddle structure and the anti-corrosion coating information of the main pipeline 2; S8. According to the stress of the saddle structure and the tension and bending of the pipeline determined by the ship laying analysis, complete the selection and design of the lashing belt 5; S9, completing the welding of the main pipeline 2 on the ship main pipeline laying operation line; S10, establishing auxiliary welding workstations on both sides of the main operation line of the ship to complete the welding of the first sub-pipeline 3 and the second sub-pipeline 4; S11, completing the lashing of the main pipeline 2, the first sub-pipeline 3 and the second sub-pipeline 4 behind the welding workstation of the ship's main operation line; S12, after the lashing, the main pipeline 2, the first sub-pipeline 3 and the second sub-pipeline 4 are laid down through the ship stinger to a predetermined route on the seabed; S13. After the laying is completed, conduct a post-laying investigation. If any unexpected situation occurs, perform temporary remedial measures and maintenance to ensure the safety of the final pipeline facilities.

[0035] The connection device based on the parallel binding of sub-pipelines with the main pipeline connects a plurality of saddle bodies 1 at intervals between the main pipeline 2, the first sub-pipeline 3 and the second sub-pipeline 4, and fixes the first sub-pipeline 3 and the second sub-pipeline 4 to the saddle body 1 through the first saddle outer stop 9 and the second saddle outer stop 10, and binds the binding belt 5 along the circumference of the saddle body 1 to achieve a fixed connection of the main pipeline 2, the first sub-pipeline 3 and the second sub-pipeline 4, thereby improving the construction efficiency, saving installation costs, reducing the cost of engineering development, and saving the application and scope of sea area use. The present application assembles three submarine pipelines with different media functions at a time through a specific saddle structure at a certain interval on the offshore pipe-laying operation line, and lowers them to the predetermined seabed through the pipe-laying vessel to complete the sea pipe laying operation.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A connecting device for a main pipeline to be tied to a sub-pipeline in parallel, characterized in that: It includes a saddle body, one side of the saddle body is abutted against the main pipe, an outer saddle stop is provided at the end of the saddle body away from the main pipe, a sub-pipe is provided between the outer saddle stop and the saddle body, a binding belt is connected along the circumference of the saddle body to fix the main pipe and the sub-pipe on the saddle body, a washer is connected to the end of the binding belt, a screw is connected to the washer, the tightness of the binding belt is adjusted by the screw, and a nut is connected to the end of the screw to bind the main pipe and the sub-pipe to the saddle body.

2. The connecting device for main pipelines and sub-pipes in parallel according to claim 1 is characterized in that: The saddle body is provided with a first notch, and the main pipe is abutted in the first notch.

3. The connecting device for main pipelines and sub-pipes in parallel according to claim 1, characterized in that: A second notch and a third notch are spaced apart from each other on one side of the saddle body away from the first notch.

4. The connecting device for main pipelines and sub-pipes in parallel according to claim 3 is characterized in that: The first sub-pipeline is abutted in the second notch, and a first saddle outer stop is arranged on the second notch, so that the first sub-pipeline is stably arranged in the second notch.

5. The connecting device for main pipelines and sub-pipes in parallel according to claim 3 is characterized in that: The second sub-pipeline is abutted in the third notch, and a second saddle outer stop is arranged on the third notch, so that the second sub-pipeline can be stably arranged in the third notch.

6. The connecting device for main pipelines and sub-pipes in parallel according to claim 5, characterized in that: A plurality of binding belts are bound along the circumference of the saddle body, and the binding belts abut against the first saddle outer block, the second saddle outer block and the main pipe away from the saddle body, so that the main pipe, the first sub-pipe and the second sub-pipe are stably arranged on the saddle body.

7. The connecting device for main pipelines and sub-pipes in parallel according to claim 6, characterized in that: One ends of the plurality of binding belts are sleeved on the first washer, and one ends of the plurality of binding belts away from the first washer are sleeved on the second washer.

8. The connecting device for main pipelines and sub-pipes in parallel according to claim 7, characterized in that: The first washer and the second washer are provided with screw holes correspondingly, and the screw rod is screwed on the screw holes of the first washer and the second washer, and nuts are screwed on both ends of the screw rod to adjust the tension of the binding belt.

9. The connecting device for main pipelines and sub-pipes in parallel according to claim 2, characterized in that: A rubber gasket is provided between the main pipeline and the first notch to avoid damaging the anti-corrosion coating on the surface of the main pipeline.

10. The connecting device for main pipelines and sub-pipes in parallel according to claim 6, characterized in that: The main pipe, the first sub-pipe and the second sub-pipe abutting against the saddle body are parallel to each other.

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