Butt-joint locking device facilitating installation of subsea pipelines

Abstract

The utility model discloses a subsea pipeline butt joint locking device convenient to install, and particularly relates to the technical field of subsea pipelines, the subsea pipeline butt joint locking device comprises a locking piece used for butt joint of the subsea pipelines, the locking piece is arranged outside one end of each subsea pipeline, and an auxiliary piece used for preventing the locking piece from being damaged by impact is arranged outside each subsea pipeline; the auxiliary part comprises a fixing ring arranged outside the subsea pipeline in a sleeving mode, a supporting ring is installed on the side, close to the locking part, of the fixing ring, the outer portion of the end, away from the fixing ring, of the supporting ring is sleeved with a packaging ring, and a baffle ring is installed on the side, close to the fixing ring, of the packaging ring. The positioning ring is in threaded connection with the fixing ring, the positioning ring can be rotated to adjust the position of the packaging ring internally and externally, when the packaging ring moves outwards, space is vacated to operate the locking piece, and when the packaging ring moves inwards, the packaging ring shields the outside of the locking piece, so that external collision impact is prevented from directly acting on the locking piece, and the locking piece is prevented from being damaged. The use performance of the locking piece is ensured, and the overall operation is simple, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of subsea pipeline technology, and more specifically to a device for facilitating the installation of subsea pipeline docking and locking. Background Technology

[0002] In recent years, the number of deep-water subsea pipelines has been increasing, and accidents causing pipeline damage have become more frequent due to factors such as the pipeline's age, corrosion, and towing by trawlers. Once a subsea pipeline is damaged, it poses a significant threat to the marine environment and oil and gas field production. The typical repair method for such sudden pipeline damage is to replace the damaged section. To reduce the enormous economic losses caused by marine pollution and oil production stoppages, safe, rapid, and reliable replacement of damaged pipelines is crucial. The connection and sealing of subsea pipelines are key aspects of ensuring the safe operation of the system.

[0003] As shown in the prior art published in CN212480454U, although the prior art simplifies the installation by allowing the pipe ends of the subsea pipeline to be connected without complete alignment through the rotatable and wobbly design of the rotating flange on the subsea pipeline, the joints of the two subsea pipelines are still exposed to the outside. This makes them vulnerable to damage from debris in the seawater, which in turn affects the stability of the connection between the two subsea pipelines. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides an easy-to-install subsea pipeline docking and locking device. Through the threaded connection between the positioning ring and the fixed ring, the position of the sealing ring can be adjusted inward and outward by rotating the positioning ring. When the sealing ring moves outward, it creates space to operate the locking component. When the sealing ring moves inward, it blocks the outside of the locking component, thereby preventing external collisions and impacts from directly affecting the locking component and avoiding damage to the locking component. This ensures the performance of the locking component. The overall operation is simple and convenient, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking device for easy installation of subsea pipeline docking, comprising a locking component for docking subsea pipelines, wherein the locking component is disposed on the outside of one end of the subsea pipeline, and each subsea pipeline is provided with an auxiliary component on the outside for preventing impact damage to the locking component;

[0006] The auxiliary component includes a fixing ring sleeved on the outside of the subsea pipeline. A support ring is installed on the side of the fixing ring near the locking component, and a sealing ring is sleeved on the side of the support ring away from the fixing ring. A retaining ring is installed on the side of the sealing ring near the fixing ring. The retaining ring is sleeved on the outside of the support ring. The sealing ring protects the locking component from impact and collision, thereby preventing damage to the locking component and ensuring its performance.

[0007] In a preferred embodiment, each locking component includes an inner ring, a locking ring, and an outer ring, which are sequentially fitted around the subsea pipeline from the inside out. The locking ring has multiple locking holes arranged in a circular array on its outer side, and a movable area between the inner ring and the outer ring is provided for adjusting the position and angle of the locking ring. The inner and outer rings limit the locking ring, thereby preventing the locking ring from separating from the subsea pipeline. The movable area between the inner and outer rings provides sufficient space for the locking ring to adjust its position and angle, making it easy to adjust the locking ring according to the needs of subsea pipeline docking, thereby improving the convenience of subsea pipeline docking.

[0008] In a preferred embodiment, the outer diameter of the encapsulation ring is smaller than the outer diameter of the retaining ring, and the inner diameter of the encapsulation ring is larger than the outer diameter of the locking ring. Because the inner diameter of the encapsulation ring is larger than the outer diameter of the locking ring, the encapsulation ring can be fitted onto the outside of the locking ring. This allows the encapsulation ring to shield and protect the outside of the locking ring, preventing damage to the locking ring from external collisions and impacts, thereby ensuring the performance of the locking ring.

[0009] In a preferred embodiment, a positioning ring is sleeved on the outside of the retaining ring. The end of the positioning ring away from the sealing ring is sleeved on the outside of the fixed ring, and the positioning ring is threadedly connected to the fixed ring. Through the threaded connection between the positioning ring and the fixed ring, the sealing ring can be moved while the positioning ring is rotated, so as to facilitate the adjustment of the position of the sealing ring according to the docking requirements and avoid the sealing ring from obstructing the docking operation of the subsea pipeline.

[0010] In a preferred embodiment, a limiting ring is installed inside the end of the positioning ring away from the retaining ring, and the limiting ring is sleeved on the outside of the subsea pipeline. By setting the limiting ring, the displacement distance of the positioning ring can be limited, thereby preventing the positioning ring from separating from the fixed ring and ensuring the stability of the positioning ring during displacement.

[0011] In a preferred embodiment, a plurality of reinforcing rods are installed on the outside of the encapsulation ring. The plurality of reinforcing rods are arranged in a ring array on the outside of the encapsulation ring. By setting multiple reinforcing rods, the protective strength and structural stability of the encapsulation ring can be effectively enhanced, avoiding damage to the encapsulation ring from external impacts and ensuring the performance of the encapsulation ring.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] The positioning ring and the fixed ring are connected by threads, and the position of the sealing ring can be adjusted inward and outward by rotating the positioning ring. When the sealing ring moves outward, it creates space to operate the locking component. When the sealing ring moves inward, it blocks the outside of the locking component, thereby preventing external collisions and impacts from directly affecting the locking component and preventing damage to the locking component. This ensures the performance of the locking component, and the overall operation is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the locking ring of this utility model;

[0016] Figure 3 This is a cross-sectional view of the packaging ring of this utility model;

[0017] Figure 4 This is a side view of the packaging ring of this utility model;

[0018] Figure 5 This is a cross-sectional view of the locking ring of this utility model.

[0019] The attached diagram is labeled as follows: 1. Subsea pipeline; 2. Fixing ring; 3. Support ring; 4. Encapsulation ring; 5. Retaining ring; 6. Inner ring; 7. Locking ring; 8. Outer ring; 9. Moving area; 10. Positioning ring; 11. Limiting ring; 12. Reinforcing rod; 13. Locking hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Refer to the instruction manual appendix Figure 1-5 This utility model provides a locking device for easy installation of subsea pipeline docking, including a locking component for docking subsea pipeline 1. The locking component is located on the outside of one end of the subsea pipeline 1. Each subsea pipeline 1 is provided with an auxiliary component to prevent impact damage to the locking component. The auxiliary component includes a fixing ring 2 sleeved on the outside of the subsea pipeline 1. A support ring 3 is installed on the side of the fixing ring 2 near the locking component. A sealing ring 4 is sleeved on the outside of the end of the support ring 3 away from the fixing ring 2. A retaining ring 5 is installed on the side of the sealing ring 4 near the fixing ring 2. The retaining ring 5 is sleeved on the outside of the support ring 3.

[0022] When using the above-mentioned locking components to lock and connect the two subsea pipes 1, the operator needs to first move the sealing ring 4 outward to separate it from the locking components. Since the retaining ring 5 is fitted with a positioning ring 10, the end of the positioning ring 10 away from the sealing ring 4 is fitted outside the fixing ring 2, and the positioning ring 10 is threadedly connected to the fixing ring 2, the operator can rotate the positioning ring 10 threadedly connected to the fixing ring 2. This operation of the positioning ring 10 drives the retaining ring 5 and the sealing ring 4 outward, so that the sealing ring 4 is separated from the locking components, thus providing sufficient space for the operator to perform the locking operation. The locking components are fixed together by bolts.

[0023] Because the outer diameter of the encapsulation ring 4 is smaller than the outer diameter of the retaining ring 5, and the inner diameter of the encapsulation ring 4 is larger than the outer diameter of the locking ring 7, the encapsulation ring 4 can be fitted onto the outside of the locking component. The encapsulation ring 4 can shield against external impacts, preventing them from directly affecting the locking component and ensuring its performance. The retaining ring 5 can connect the encapsulation ring 4 and the positioning ring 10, making the positioning ring 10 and the encapsulation ring 4 integrated, thus facilitating the adjustment of the position of the encapsulation ring 4 by operating the positioning ring 10.

[0024] Each locking component includes an inner ring 6, a locking ring 7, and an outer ring 8, which are sequentially fitted around the outside of the subsea pipe 1 from the inside out. The locking ring 7 has multiple locking holes 13 arranged in a ring array on its outside. A movable area 9 for adjusting the position and angle of the locking ring 7 is provided between the inner ring 6 and the outer ring 8. This allows the operator to adjust the docking angle and position of the locking ring 7 within the movable area 9 when locking the two subsea pipes 1, thereby avoiding the fixed position of the locking ring 7 from affecting the docking convenience and improving the efficiency of the operator when docking the subsea pipes 1.

[0025] After the subsea pipeline 1 is connected, to prevent damage to the connection point from collisions and impacts, it is necessary to protect the connection point. This requires reversing the positioning ring 10, which is threadedly connected to the fixing ring 2. The positioning ring 10 drives the retaining ring 5 and the sealing ring 4 to move inward, so that the sealing ring 4 is fitted onto the outside of the locking component. The sealing ring 4 protects the locking component from external collisions and impacts, ensuring the stability of the connection between the two subsea pipelines 1. Furthermore, since multiple reinforcing rods 12 are installed on the outside of the sealing ring 4, and the multiple reinforcing rods 12 are distributed in a ring array on the outside of the sealing ring 4, the outside of the sealing ring 4 can be reinforced by the multiple reinforcing rods 12, thereby ensuring the stability of the sealing ring 4, preventing damage to the sealing ring 4 from external impacts, and ensuring the performance of the sealing ring 4.

[0026] To prevent the positioning ring 10 from separating from the fixed ring 2, the movement distance of the positioning ring 10 needs to be limited. Therefore, a limiting ring 11 is installed inside the end of the positioning ring 10 away from the retaining ring 5, and the limiting ring 11 is sleeved on the outside of the subsea pipeline 1. Since the limiting ring 11 is located on the side of the fixed ring 2 away from the support ring 3, and the limiting ring 11 is fixed together with the positioning ring 10, the limiting ring 11 can limit the displacement of the positioning ring 10, thereby ensuring the stability of the displacement of the positioning ring 10 and preventing the positioning ring 10 from becoming loose from the fixed ring 2.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking device for easy installation of subsea pipeline docking, characterized in that: Includes a locking element for docking the subsea pipeline (1), the locking element being located on the outside of one end of the subsea pipeline (1), and each subsea pipeline (1) having an auxiliary element on its outside to prevent impact damage to the locking element; The auxiliary component includes a fixing ring (2) sleeved on the outside of the subsea pipeline (1). A support ring (3) is installed on the side of the fixing ring (2) near the locking component. A sealing ring (4) is sleeved on the outside of the end of the support ring (3) away from the fixing ring (2). A retaining ring (5) is installed on the side of the sealing ring (4) near the fixing ring (2). The retaining ring (5) is sleeved on the outside of the support ring (3).

2. The easy-to-install subsea pipeline docking and locking device according to claim 1, characterized in that: Each locking component includes an inner ring (6), a locking ring (7), and an outer ring (8) that are sequentially fitted around the outside of the subsea pipeline (1) from the inside to the outside. The locking ring (7) has multiple locking holes (13) arranged in a ring array on its outside, and a moving area (9) for adjusting the position and angle of the locking ring (7) is provided between the inner ring (6) and the outer ring (8).

3. The easy-to-install subsea pipeline docking and locking device according to claim 2, characterized in that: The outer diameter of the encapsulation ring (4) is smaller than the outer diameter of the retaining ring (5), and the inner diameter of the encapsulation ring (4) is larger than the outer diameter of the locking ring (7).

4. The easy-to-install subsea pipeline docking and locking device according to claim 1, characterized in that: The retaining ring (5) is fitted with a positioning ring (10), and the end of the positioning ring (10) away from the encapsulation ring (4) is fitted on the outside of the fixing ring (2), and the positioning ring (10) is threadedly connected to the fixing ring (2).

5. The easy-to-install subsea pipeline docking and locking device according to claim 4, characterized in that: The positioning ring (10) has a limiting ring (11) installed inside the end away from the retaining ring (5), and the limiting ring (11) is sleeved on the outside of the subsea pipeline (1).

6. The easy-to-install subsea pipeline docking and locking device according to claim 1, characterized in that: Multiple reinforcing rods (12) are installed on the outside of the encapsulation ring (4), and the multiple reinforcing rods (12) are arranged in a ring array on the outside of the encapsulation ring (4).

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