Submarine pipeline connecting mechanism

Abstract

The utility model discloses a submarine pipeline connecting mechanism which comprises a first pipeline assembly and a second pipeline assembly, and the first pipeline assembly is located behind the second pipeline assembly. The first pipeline assembly comprises a first pipe body, a first pipe sleeve, a first outer ring, a first inner ring, a top box and a display groove, the circumferential surface of the first pipe body is fixedly connected with the first pipe sleeve, and the front side wall of the first pipe sleeve is fixedly connected with the first outer ring. By means of the structure, the outer rings of every two adjacent pipelines are connected in a clamping mode, the inner rings of every two adjacent pipelines are connected through the threads, the air bags are arranged between the outer rings and the inner rings, when the air bags are inflated, after the air bags are expanded, the two adjacent pipelines are connected more stably, and perfect sealing can be formed; and the sealing devices in the outer ring and the inner ring are combined, so that the sealing performance of the connecting part is greatly improved, meanwhile, the connection between the pipelines is more convenient, and the convenience of pipeline maintenance is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a submarine pipeline connection mechanism. Background Art

[0002] Submarine pipelines are used to continuously transport oil, natural gas or other fluid products. They are laid underwater or buried at a certain depth on the seabed. Submarine pipelines are a major component of the offshore oil and gas field development and production system, and are also one of the fastest, safest, most economical and reliable ways to transport offshore oil and gas. Due to the long length of submarine pipelines, multiple sections of submarine pipelines need to be connected to ensure the normal transportation of internal oil and gas.

[0003] Among the existing submarine pipeline connection methods, common methods such as flanges and welding are generally used for connection. However, the submarine ecology is complex, and it is very easy to cause corrosion to connection parts such as bolts and welding points, resulting in leakage in the pipeline connection parts. In addition, bolts, welding and other methods are not convenient for pipeline maintenance and replacement. Utility Model Content

[0004] The utility model aims to provide a submarine pipeline connection mechanism, in which the outer rings between two adjacent pipelines are connected by a clamping method, and the inner rings are connected by a thread, and an air bag is arranged between the outer ring and the inner ring. When the air bag is inflated, the air bag not only makes the connection between the two adjacent pipelines more stable, but also forms a perfect seal. Combined with the sealing devices in the outer ring and the inner ring, the sealing of the connection part is greatly improved, and the connection between the pipelines is more convenient, which greatly improves the convenience of pipeline maintenance.

[0005] To achieve the above object, a submarine pipeline connection mechanism is provided, comprising: a first pipeline assembly and a second pipeline assembly, wherein the first pipeline assembly is located behind the second pipeline assembly;

[0006] The first pipe assembly includes a first pipe body, a first pipe sleeve, a first outer ring, a first inner ring, a top box and a display slot, the first pipe sleeve is fixedly connected to the circumferential surface of the first pipe body, the first outer ring is fixedly connected to the front side wall of the first pipe sleeve, the first inner ring is fixedly connected to the front side wall of the first pipe body, the top of the first pipe sleeve is fixedly connected to the top box, and the display slot is arranged on the rear side wall of the top box;

[0007] The second pipe assembly includes a second pipe body, a second pipe sleeve, a second outer ring and a second inner ring. The second pipe sleeve is fixedly connected to the circumferential surface of the second pipe body, the second outer ring is fixedly connected to the rear side wall of the second pipe sleeve, and the second inner ring is fixedly connected to the rear side wall of the second pipe body.

[0008] According to the submarine pipeline connection mechanism, the first pipe sleeve and the second pipe sleeve are both conical and arranged opposite to each other, a cavity is formed between the first pipe sleeve, the second pipe sleeve and the first tube body and the second tube body, an air bag is arranged inside the cavity, an air pipe is fixedly connected to the top of the air bag, a one-way valve is fixedly connected to the circumferential surface of the air pipe, a pressure dial is fixedly connected to the one-way valve, and the pressure dial is located inside the display slot.

[0009] According to the submarine pipeline connection mechanism, the first outer ring and the second outer ring are clamped together, and an outer sealing ring is arranged behind the second outer ring.

[0010] According to the submarine pipeline connection mechanism, the first inner ring and the second inner ring are threadedly connected, and an inner sealing ring is arranged behind the second inner ring.

[0011] According to the submarine pipeline connection mechanism, the one-way valve and the air pressure dial are both located inside the top box.

[0012] According to the submarine pipeline connection mechanism, the outer sealing ring is located on the outside of the airbag, and the inner sealing ring is located on the inside of the airbag.

[0013] The above scheme has the beneficial effects: by arranging the first tube body, the first tube sleeve, the first outer ring, the first inner ring, the top box, the display slot, the second tube body, the second tube sleeve, the second outer ring, the second inner ring, the airbag, the trachea, the one-way valve, the air pressure dial, the outer sealing ring and the inner sealing ring, the outer rings between the two adjacent pipes are connected by a clamping method, and the inner rings are connected by threads. An airbag is arranged between the outer ring and the inner ring. When the inside of the airbag is inflated, the airbag not only makes the connection between the two adjacent pipes more stable after expansion, but also can form a perfect seal. Combined with the sealing devices in the outer ring and the inner ring, the sealing of the connection part is greatly improved. At the same time, the connection between the pipes is also more convenient, which greatly improves the convenience of pipe maintenance.

[0014] 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

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of a submarine pipeline connection mechanism of the utility model;

[0017] Figure 2 This is a cross-sectional view of a submarine pipeline connection mechanism of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of middle;

[0019] Figure 4 for Figure 2 Enlarged view of middle B;

[0020] Figure 5 It is a rear view of a submarine pipeline connection mechanism of the utility model.

[0021] Legend:

[0022] 1. First pipeline assembly; 101. First pipe body; 102. First pipe sleeve; 103. First outer ring; 104. First inner ring; 105. Top box; 106. Display slot;

[0023] 2. Second pipe assembly; 201. Second pipe body; 202. Second pipe sleeve; 203. Second outer ring; 204. Second inner ring;

[0024] 3. Air bag; 4. Air pipe; 5. One-way valve; 6. Air pressure dial; 7. Outer sealing ring; 8. Inner sealing ring. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-5 The utility model embodiment provides a submarine pipeline connection mechanism, which includes: a first pipeline component 1 and a second pipeline component 2, wherein the first pipeline component 1 is located behind the second pipeline component 2.

[0027] The first pipeline assembly 1 includes a first tube body 101, a first tube sleeve 102, a first outer ring 103, a first inner ring 104, a top box 105 and a display slot 106. The first tube sleeve 102 is fixedly connected to the circumferential surface of the first tube body 101, the first outer ring 103 is fixedly connected to the front side wall of the first tube sleeve 102, the first inner ring 104 is fixedly connected to the front side wall of the first tube body 101, the top of the first tube sleeve 102 is fixedly connected to the top, and the display slot 106 is arranged on the rear side wall of the top box 105.

[0028] The second pipe assembly 2 includes a second pipe body 201, a second pipe sleeve 202, a second outer ring 203 and a second inner ring 204. The second pipe sleeve 202 is fixedly connected to the circumferential surface of the second pipe body 201, the second outer ring 203 is fixedly connected to the rear side wall of the second pipe sleeve 202, and the second inner ring 204 is fixedly connected to the rear side wall of the second pipe body 201.

[0029] The first sleeve 102 and the second sleeve 202 are both conical and arranged relatively to each other. A cavity is formed between the first sleeve 102, the second sleeve 202 and the first tube body 101, the second tube body 201. An airbag 3 is arranged inside the cavity. A trachea 4 is fixedly connected to the top of the airbag 3. The airbag 3 is inflated through the trachea 4 to expand the airbag 3, thereby filling the cavity and stabilizing the connection position. At the same time, a seal is formed after the airbag 3 is inflated. A one-way valve 5 is fixedly connected to the circumferential surface of the trachea 4. A pressure dial 6 is fixedly connected to the one-way valve 5. The pressure dial 6 is located inside the display slot 106. The one-way valve 5 and the pressure dial 6 are both located inside the top box 105. The pressure dial 6 can display the current internal air pressure of the airbag 3, thereby judging whether the internal air pressure is sufficient. When the air pressure is insufficient, the sealing formed by the airbag 3 will be reduced, and the stability of the connection position will also be reduced.

[0030] The first outer ring 103 and the second outer ring 203 are clamped together, and an outer sealing ring 7 is arranged at the rear of the second outer ring 203. The first inner ring 104 and the second inner ring 204 are threadedly connected. An inner sealing ring 8 is arranged at the rear of the second inner ring 204. The outer sealing ring 7 is located on the outside of the airbag 3, and the inner sealing ring 8 is located on the inside of the airbag 3. The first outer ring 103 and the second outer ring 203 form an outer ring clamping connection, and the first inner ring 104 and the second inner ring 204 form an inner ring threaded connection. The two are respectively located on the inner and outer sides of the airbag 3, and are staggered front and back. Together with the airbag 3, multiple seals are formed at the connection position, which greatly improves the sealing of the connection position. At the same time, it simplifies the connection method, facilitates installation and disassembly, and facilitates the maintenance and replacement of the pipeline in the later stage.

[0031] Working principle: The first tube body 101 and the second tube body 201 are connected, and the first outer ring 103 and the second outer ring 203 are connected to form an outer ring clamping connection, and the first inner ring 104 and the second inner ring 204 are connected to form an inner ring threaded connection. The airbag 3 is filled between the outer ring and the inner ring. When the airbag 3 is inflated through the trachea 4, the airbag 3 can be expanded to fill the cavity and stabilize the connection part. At the same time, the airbag 3 forms a layer of sealing after expansion, and forms a multi-seal together with the outer sealing ring 7 in the outer ring and the inner sealing ring 8 in the inner ring to improve the overall sealing performance.

[0032] 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, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A submarine pipeline connection mechanism, characterized in that: include: A first pipe assembly (1) and a second pipe assembly (2), wherein the first pipe assembly (1) is located behind the second pipe assembly (2); The first pipe assembly (1) comprises a first pipe body (101), a first pipe sleeve (102), a first outer ring (103), a first inner ring (104), a top box (105) and a display slot (106); the first pipe sleeve (102) is fixedly connected to the circumferential surface of the first pipe body (101); the first outer ring (103) is fixedly connected to the front side wall of the first pipe sleeve (102); the first inner ring (104) is fixedly connected to the front side wall of the first pipe body (101); the top of the first pipe sleeve (102) is fixedly connected to the top box (105); and the display slot (106) is provided on the rear side wall of the top box (105); The second pipe assembly (2) comprises a second pipe body (201), a second pipe sleeve (202), a second outer ring (203) and a second inner ring (204); the second pipe sleeve (202) is fixedly connected to the circumferential surface of the second pipe body (201); the second outer ring (203) is fixedly connected to the rear side wall of the second pipe sleeve (202); and the second inner ring (204) is fixedly connected to the rear side wall of the second pipe body (201).

2. A submarine pipeline connection mechanism according to claim 1, characterized in that: The first tube sleeve (102) and the second tube sleeve (202) are both conical and arranged opposite to each other; a cavity is formed between the first tube sleeve (102), the second tube sleeve (202) and the first tube body (101), the second tube body (201); an air bag (3) is arranged inside the cavity; an air pipe (4) is fixedly connected to the top of the air bag (3); a one-way valve (5) is fixedly connected to the circumferential surface of the air pipe (4); a pressure dial (6) is fixedly connected to the one-way valve (5); and the pressure dial (6) is located inside the display slot (106).

3. A submarine pipeline connection mechanism according to claim 2, characterized in that: The first outer ring (103) and the second outer ring (203) are clamped together, and an outer sealing ring (7) is arranged behind the second outer ring (203).

4. A submarine pipeline connection mechanism according to claim 3, characterized in that: The first inner ring (104) and the second inner ring (204) are threadedly connected, and an inner sealing ring (8) is arranged behind the second inner ring (204).

5. A submarine pipeline connection mechanism according to claim 2, characterized in that: The one-way valve (5) and the air pressure dial (6) are both located inside the top box (105).

6. A submarine pipeline connection mechanism according to claim 4, characterized in that: The outer sealing ring (7) is located on the outer side of the airbag (3), and the inner sealing ring (8) is located on the inner side of the airbag (3).

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