Coupling device for double-layer submarine pipeline

Abstract

The utility model discloses a connecting device for a double-layer submarine pipeline, which comprises a mounting plate, a mounting seat is arranged on one side of the mounting plate, a connecting piece is arranged on the inner side of the mounting seat, a mounting piece is fixedly connected to the upper end of the connecting piece, a rotating seat is fixedly connected to the upper end of the mounting piece, and a limiting seat is fixedly connected to the upper end of the connecting piece. And a tightening thread limiting rod is correspondingly arranged at the upper end of the limiting seat. Through the structure, the outer side of the bearing is fixedly connected with the fixing shell, the outer side of the connecting piece is provided with the mounting seat, the inner side of the mounting seat is provided with the rotating groove, the upper side of the connecting piece is fixedly connected with the limiting seat, the inner side of the limiting seat is provided with the threaded hole, and the upper end of the threaded hole is correspondingly in threaded connection with the tightening threaded limiting rod; the outer side of the tightening threaded limiting rod is in threaded connection with a fixing block, so that the fixing block can rotate in different directions for connection, the upper end of the mounting piece is fixedly connected with a rotating seat, and the mounting piece is locked through four second locking bolts and is used for disassembling and assembling connecting pieces of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of connection for double-layer submarine pipelines, in particular to a connection device for double-layer submarine pipelines. Background Art

[0002] For offshore oilfield development, submarine pipelines, as important underwater facilities, play a role in oil and gas transportation. Based on the need for thermal insulation of the transport medium, a double-layer submarine pipeline is usually designed. The double-layer submarine pipeline is a concentric tube-in-tube type, and thermal insulation materials are filled between the steel pipes to prevent the transport medium from solidifying. During the offshore installation and laying of double-layer submarine pipelines, especially for the start and end installation of deep-water submarine pipelines, the side installation method is usually adopted. The submarine pipeline needs to be temporarily fixed on the side of the ship for welding with the terminal structure of the submarine pipeline, which requires the use of a coupling structure, so it is necessary to set up a coupling device for double-layer submarine pipelines.

[0003] When a coupling device for a double-layer submarine pipeline is used, the prior art generally only couples in one direction, so that when coupling a double-layer submarine pipeline in multiple directions, the coupling pipe generally has one diameter, which has great limitations. Utility Model Content

[0004] The utility model aims to provide a coupling device for double-layer submarine pipelines, which can be rotated in different directions for coupling, and is convenient for disassembling and assembling coupling parts of different sizes.

[0005] In order to achieve the above-mentioned purpose, a coupling device for a double-layer submarine pipeline is provided, comprising a mounting plate, a mounting seat is arranged on one side of the mounting plate, a coupling piece is arranged on the inner side of the mounting seat, a mounting piece is fixedly connected to the upper end of the coupling piece, a rotating seat is fixedly connected to the upper end of the mounting piece, a limiting seat is fixedly connected to the upper end of the coupling piece, and a tightening threaded limiting rod is correspondingly arranged on the upper end of the limiting seat.

[0006] According to the coupling device for double-layer submarine pipelines, two first mounting bars are symmetrically fixedly connected to both sides of the mounting plate, and two first locking bolts are symmetrically threadedly connected to the first mounting bars.

[0007] According to the coupling device for double-layer submarine pipelines, two second mounting bars are symmetrically fixedly connected to both sides of the mounting seat, and two third locking bolts are symmetrically threadedly connected to the second mounting bars.

[0008] According to the coupling device for a double-layer submarine pipeline, a rotation groove is provided on the inner wall of the mounting seat.

[0009] According to the coupling device for a double-layer submarine pipeline, four second locking bolts are evenly threadedly connected to the mounting member.

[0010] According to the coupling device for a double-layer submarine pipeline, a bearing is fixedly connected to the outer side of the rotating seat, and a fixed shell is fixedly connected to the outer side of the bearing.

[0011] According to the coupling device for a double-layer submarine pipeline, a threaded hole is provided inside the limit seat.

[0012] According to the coupling device for double-layer submarine pipelines, the outer side of the tightening threaded limit rod is threadedly connected to a fixing block, one side of the fixing block is fixedly connected to the side wall of the mounting seat, and the upper end of the tightening threaded limit rod is fixedly connected to a rotating block.

[0013] Beneficial effects:

[0014] 1. A mounting piece is provided at the upper end of the connecting piece, and a rotating seat is fixedly connected to the upper end of the mounting piece. A bearing is fixedly connected to the outer side of the rotating seat, and a fixed shell is fixedly connected to the outer side of the bearing. A mounting seat is provided at the outer side of the connecting piece, and a rotating groove is provided at the inner side of the mounting seat. A limit seat is fixedly connected to the upper side of the connecting piece, and a threaded hole is provided at the inner side of the limit seat. A tightening threaded limit rod is threadedly connected to the upper end of the threaded hole, and a fixed block is threadedly connected to the outer side of the tightening threaded limit rod, so that it can be rotated in different directions for connection.

[0015] 2. A mounting piece is arranged at the upper end of the connecting piece, and a rotating seat is fixedly connected to the upper end of the mounting piece. The mounting piece is locked by four second locking bolts, so that it is convenient to disassemble and assemble connecting pieces of different sizes.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 A stereoscopic diagram of a coupling device for a double-layer submarine pipeline proposed by the utility model;

[0019] Figure 2 This is a cross-sectional view of a coupling device for a double-layer submarine pipeline proposed by the utility model;

[0020] Figure 3 The utility model proposed Figure 1 The structural diagram at A in the middle;

[0021] Figure 4 The utility model proposed Figure 1 Schematic diagram of the structure at B in the figure.

[0022] Legend:

[0023] 1. Mounting plate; 2. First mounting bar; 3. First locking bolt; 4. Mounting seat; 5. Rotation slot; 6. Second mounting bar; 7. Third locking bolt; 8. Connector; 9. Mounting piece; 10. Second locking bolt; 11. Rotation seat; 12. Bearing; 13. Fixed shell; 14. Fixed block; 15. Tighten the threaded limit rod; 16. Rotation block; 17. Limit seat; 18. Threaded hole. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 The utility model embodiment is a coupling device for a double-layer submarine pipeline, which includes a mounting plate 1, a mounting seat 4 is arranged on one side of the mounting plate 1, a coupling member 8 is arranged on the inner side of the mounting seat 4, a mounting member 9 is fixedly connected to the upper end of the coupling member 8, a rotating seat 11 is fixedly connected to the upper end of the mounting member 9, a limiting seat 17 is fixedly connected to the upper end of the limiting seat 17, and a tightening threaded limiting rod 15 is correspondingly arranged on the upper end of the limiting seat 17.

[0026] Two first mounting bars 2 are symmetrically fixedly connected on both sides of the mounting plate 1 . Two first locking bolts 3 are symmetrically threadedly connected on the first mounting bars 2 . The first locking bolts 3 are used to fix the first mounting bars 2 .

[0027] Two second mounting bars 6 are symmetrically fixedly connected on both sides of the mounting seat 4 . Two third locking bolts 7 are symmetrically threadedly connected on the second mounting bars 6 . The third locking bolts 7 are used to fix the second mounting bars 6 .

[0028] The inner wall of the mounting seat 4 is provided with a rotation groove 5 .

[0029] Four second locking bolts 10 are evenly threadedly connected to the mounting member 9 , and the second locking bolts 10 are used to fix the mounting member 9 .

[0030] A bearing 12 is fixedly connected to the outer side of the rotating seat 11 . The bearing 12 enables the rotating seat 11 to rotate. A fixed shell 13 is fixedly connected to the outer side of the bearing 12 .

[0031] A threaded hole 18 is provided inside the limiting seat 17 , and the threaded hole 18 enables the threaded limiting rod 15 to be locked and tightened.

[0032] The outer side of the tightening thread limiting rod 15 is threadedly connected with a fixing block 14 , one side of the fixing block 14 is fixedly connected to the side wall of the mounting seat 4 , and the upper end of the tightening thread limiting rod 15 is fixedly connected with a rotating block 16 .

[0033] Working principle: first install the device on the side of the ship, a mounting part 9 is provided on the upper end of the connecting member 8, and a rotating seat 11 is fixedly connected to the upper end of the mounting part 9, a bearing 12 is fixedly connected to the outer side of the rotating seat 11, and a fixed shell 13 is fixedly connected to the outer side of the bearing 12, a mounting seat 4 is provided on the outer side of the connecting member 8, and a rotating groove 5 is provided on the inner side of the mounting seat 4, a limiting seat 17 is fixedly connected to the upper side of the connecting member 8, a threaded hole 18 is provided on the inner side of the limiting seat 17, and a tightening threaded limiting rod 15 is correspondingly threadedly connected to the upper end of the threaded hole 18, and a fixing block 14 is threadedly connected to the outer side of the tightening threaded limiting rod 15, so that it can be rotated in different directions for connection, a mounting part 9 is provided on the upper end of the connecting member 8, and a rotating seat 11 is fixedly connected to the upper end of the mounting part 9, and the mounting part 9 is locked by four second locking bolts 10, so that it is easy to disassemble and assemble connecting members 8 of different sizes.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A coupling device for a double-layer submarine pipeline, comprising a mounting plate (1), characterized in that: A mounting seat (4) is provided on one side of the mounting plate (1), a connecting piece (8) is provided inside the mounting seat (4), the upper end of the connecting piece (8) is fixedly connected to a mounting piece (9), the upper end of the mounting piece (9) is fixedly connected to a rotating seat (11), the upper end of the connecting piece (8) is fixedly connected to a limiting seat (17), and the upper end of the limiting seat (17) is correspondingly provided with a tightening threaded limiting rod (15).

2. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: Two first mounting strips (2) are symmetrically fixedly connected to the two sides of the mounting plate (1), and two first locking bolts (3) are symmetrically threadedly connected to the first mounting strips (2).

3. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: Two second mounting bars (6) are symmetrically fixedly connected to the two sides of the mounting seat (4), and two third locking bolts (7) are symmetrically threadedly connected to the second mounting bars (6).

4. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: The inner wall of the mounting seat (4) is provided with a rotation groove (5).

5. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: Four second locking bolts (10) are evenly threadedly connected to the mounting member (9).

6. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: A bearing (12) is fixedly connected to the outer side of the rotating seat (11), and a fixed shell (13) is fixedly connected to the outer side of the bearing (12).

7. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: A threaded hole (18) is provided inside the limiting seat (17).

8. A coupling device for a double-layer submarine pipeline according to claim 1, characterized in that: The outer side of the tightening threaded limiting rod (15) is threadedly connected to a fixing block (14), one side of the fixing block (14) is fixedly connected to the side wall of the mounting seat (4), and the upper end of the tightening threaded limiting rod (15) is fixedly connected to a rotating block (16).

Images