A double-layered sea pipe blocking device

Abstract

The utility model discloses a double -deck sea pipe plugging device, especially in the technical field of sea pipe plugging, including the plugging piece for plugging double -deck sea pipe, the plugging piece outside is equipped with the protection piece for ensuring stability, the protection piece includes the installation post of being equipped with in the plugging piece front side, the installation post outside thread connection has the installation cylinder, the installation cylinder rear end outside is equipped with the link ring, the link ring rear side is equipped with the protection pipe, the protection pipe rear end inside is equipped with two symmetrical distribution's fender ring, the plugging piece includes two assembly rings, and two assembly rings are respectively equipped in double -deck sea pipe top and bottom, the utility model discloses through rotating installation cylinder and installation post thread connection, conveniently with protection pipe sleeve cover and two assembly rings outside the cover, and the cooperation of protection pipe and two fender rings can all -round shield cover and two assembly rings, avoid external collision impact and cause damage to plugging piece, ensure the integrity and use performance of plugging piece.

Description

Technical Field

[0001] This utility model relates to the field of subsea pipeline plugging technology, and more specifically to a double-layer subsea pipeline plugging device. Background Technology

[0002] With the continuous development of marine resources and the ongoing expansion of various offshore infrastructure construction projects, subsea pipelines, as an important material transportation channel, are widely used in various fields such as oil and gas extraction and transportation, seawater desalination intake and discharge, cross-sea water supply, and marine sewage disposal. In these applications, to ensure the safe operation of subsea pipelines, facilitate regular inspection and maintenance, and respond to emergencies, effective sealing operations are often required.

[0003] As shown in the prior art published in CN216479600U, although this prior art uses a combination of sealing components, sealing clips, and sealing caps to seal the opening of a double-layer subsea pipeline, it is suitable for sealing the opening of a double-layer subsea pipeline after cutting, thereby completing the sealing of temporarily abandoned subsea pipelines and preventing the leakage of residual oil inside the double-layer subsea pipeline. However, the equipment used to fasten the sealing components in this prior art is exposed to the outside, making the fastening equipment susceptible to corrosion and damage from seawater, and also susceptible to damage from external impacts, which affects the robustness and stability of the technical solution. Utility Model Content

[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a double-layer subsea pipeline plugging device. By rotating the mounting cylinder and threading it with the mounting column, it is easy to fit the protective tube onto the outside of the cap and the two assembly rings. Furthermore, the cooperation between the protective tube and the two retaining rings can provide all-round protection for the cap and the two assembly rings, preventing damage to the plugging components from external collisions and impacts, ensuring the integrity and performance of the plugging components, and thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer subsea pipeline plugging device, comprising a plugging component for plugging a double-layer subsea pipeline, wherein the plugging component is provided with a protective component on the outside for ensuring stability;

[0006] The protective component includes a mounting post located on the front side of the sealing component. The mounting post is externally threaded with a mounting cylinder. A connecting ring is sleeved on the rear end of the mounting cylinder. A protective tube is installed on the rear side of the connecting ring. Two symmetrically distributed retaining rings are provided inside the rear end of the protective tube.

[0007] In a preferred embodiment, the sealing component includes two assembly rings, which are respectively fitted onto the top and bottom of the double-layer subsea pipeline. The two assembly rings have a common cap on their front side, and an inner sealing post and an outer sealing ring for sealing the double-layer subsea pipeline are installed on the rear side of the cap. The outer sealing ring is fitted onto the outside of the inner sealing post.

[0008] Both the mounting post and the mounting cylinder are located on the front side of the cover, with the mounting post installed on the front side of the cover. The cover and the two assembly rings are located inside the protective tube, and the two retaining rings are installed on the rear side of the two assembly rings respectively.

[0009] In a preferred embodiment, fasteners are provided on the outer ends of both assembly rings;

[0010] Each set of fasteners includes two spaced fastening bolts, each with a fastening nut threaded onto its bottom. The two assembly rings are connected by the fastening bolts and fastening nuts.

[0011] In a preferred embodiment, the front side of the cover is provided with a plurality of spaced fixing bolts, the fixing bolts penetrate the cover and extend into the interior of the assembly ring, and the fixing bolts are threadedly connected to the assembly ring;

[0012] The connecting ring has a groove on its rear side, and multiple fixing bolts are located inside the groove.

[0013] In a preferred embodiment, sealing grooves are provided inside both the front and rear ends of the protective tube, and sealing rings are provided inside the sealing grooves. The sealing ring located at the rear end of the protective tube is sleeved outside the two retaining rings, and the sealing ring located at the front end of the protective tube is sleeved outside the cap.

[0014] In a preferred embodiment, the top of the protective pipe is fixedly connected to a conveying pipe, a valve is installed on the outside of the top of the conveying pipe, and a connection port is fixedly connected to the top of the conveying pipe.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] By rotating the mounting cylinder and connecting it to the mounting post thread, it is easy to fit the protective tube onto the outside of the cap and the two assembly rings. The cooperation between the protective tube and the two retaining rings can provide all-round protection for the cap and the two assembly rings, avoiding damage to the sealing components from external collisions and impacts, and ensuring the integrity and performance of the sealing components.

[0017] By connecting to an external drainage system via a connection port, the seawater inside the protective pipe can be drained out, preventing seawater from corroding and damaging the internal equipment, thus effectively ensuring the performance of the sealing components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear view of the retaining ring of this utility model;

[0020] Figure 3This is a side sectional view of the protective tube of this utility model;

[0021] Figure 4 This is an exploded view of the cap of this utility model;

[0022] Figure 5 This is a side sectional view of the sealing groove of this utility model.

[0023] The attached diagram is labeled as follows: 1. Mounting post; 2. Mounting cylinder; 3. Connecting ring; 4. Protective tube; 5. Retaining ring; 6. Assembly ring; 7. Cover; 8. Inner sealing post; 9. Outer sealing ring; 10. Fastening bolt; 11. Fastening nut; 12. Fixing bolt; 13. Ring groove; 14. Sealing groove; 15. Sealing ring; 16. Delivery pipe; 17. Valve; 18. Connection port. Detailed Implementation

[0024] 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.

[0025] Refer to the instruction manual appendix Figure 1-5 This utility model provides a double-layer subsea pipeline plugging device, including a plugging component for plugging the double-layer subsea pipeline. The plugging component includes two assembly rings 6, which are respectively sleeved on the top and bottom of the double-layer subsea pipeline. The two assembly rings 6 have a common cap 7 on their front side. An inner sealing post 8 and an outer sealing ring 9 for plugging the double-layer subsea pipeline are installed on the rear side of the cap 7. The outer sealing ring 9 is sleeved on the outside of the inner sealing post 8. The mounting post 1 and the mounting cylinder 2 are both located on the front side of the cap 7, and the mounting post 1 is installed on the front side of the cap 7. The cap 7 and the two assembly rings 6 are all located inside the protective pipe 4. Two retaining rings 5 ​​are respectively installed on the rear side of the two assembly rings 6.

[0026] When assembling the aforementioned sealing components, workers place the two assembly rings 6 onto the top and bottom of the double-layer subsea pipeline, respectively. Since both ends of the assembly rings 6 are equipped with fasteners, each set of fasteners includes two spaced-apart bolts 10, with a fastening nut 11 threaded onto the bottom of each bolt 10. The two assembly rings 6 are connected by the bolts 10 and the nuts 11. This allows workers to secure the two assembly rings 6 using the bolts and nuts 11, effectively ensuring the stability of the connection between the two assembly rings 6.

[0027] Next, the cap 7 is placed in front of the two assembly rings 6, and the inner sealing post 8 and outer sealing ring 9 on the cap 7 seal the double-layer subsea pipeline. Multiple spaced fixing bolts 12 are provided on the front side of the cap 7, penetrating the cap 7 and extending into the assembly rings 6, and are threadedly connected to the assembly rings 6. A groove 13 is provided on the rear side of the connecting ring 3, and the multiple fixing bolts 12 are all located inside the groove 13. This allows workers to tighten the cap 7 and assembly rings 6 together using the fixing bolts 12, thus ensuring the stability of the connection between the cap 7 and assembly rings 6, and thereby guaranteeing the sealing effect of the sealing component on the double-layer subsea pipeline.

[0028] The sealing component is equipped with a protective component to ensure stability. The protective component includes a mounting post 1 located on the front side of the sealing component. The mounting post 1 is externally threaded with a mounting cylinder 2. A connecting ring 3 is sleeved on the rear end of the mounting cylinder 2. A protective tube 4 is installed on the rear side of the connecting ring 3. Two symmetrically distributed retaining rings 5 ​​are provided inside the rear end of the protective tube 4.

[0029] This allows the operator to fit the mounting cylinder 2 onto the outside of the mounting post 1, and then rotate the mounting cylinder 2 to connect it to the mounting post 1 by thread. This facilitates the fitting of the protective tube 4 onto the outside of the cover 7 and the two assembly rings 6. With the cooperation of the protective tube 4 and the two retaining rings 5, the cover 7 and the two assembly rings 6 can be completely shielded, thus preventing damage to the sealing component from external collisions and impacts, and ensuring the integrity and performance of the sealing component.

[0030] Meanwhile, since sealing grooves 14 are provided inside both the front and rear ends of the protective tube 4, and sealing rings 15 are provided inside the sealing grooves 14, the sealing ring 15 located at the rear end of the protective tube 4 is fitted over the two retaining rings 5, and the sealing ring 15 located at the front end of the protective tube 4 is fitted over the cap 7. Thus, the sealing performance between the protective tube 4 and the sealing component can be enhanced by the fit between the sealing rings 15 and the retaining rings 5 ​​and the cap 7.

[0031] Subsequently, a conveying pipe 16 is fixedly connected to the top of the protective pipe 4. A valve 17 is installed on the outside of the top of the conveying pipe 16, and a connection port 18 is fixedly connected to the top of the conveying pipe 16. This allows workers to connect the drainage equipment to the connection port 18 and then drain the seawater from the protective pipe 4, preventing seawater from corroding and damaging the internal equipment, thereby effectively ensuring the performance of the sealing component.

[0032] 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 double-layer subsea pipeline plugging device, comprising a plugging component for plugging a double-layer subsea pipeline, characterized in that: The sealing component is externally equipped with protective components to ensure stability; The protective component includes a mounting post (1) located on the front side of the sealing component. The mounting post (1) is externally threaded with a mounting cylinder (2). A connecting ring (3) is sleeved on the rear end of the mounting cylinder (2). A protective tube (4) is installed on the rear side of the connecting ring (3). Two symmetrically distributed retaining rings (5) are provided inside the rear end of the protective tube (4).

2. The double-layer subsea pipeline plugging device according to claim 1, characterized in that: The sealing component includes two assembly rings (6), which are respectively fitted on the top and bottom of the double-layer subsea pipeline. The two assembly rings (6) are provided with the same cap (7) on the front side. An inner sealing column (8) and an outer sealing ring (9) for sealing the double-layer subsea pipeline are installed on the rear side of the cap (7). The outer sealing ring (9) is fitted on the outside of the inner sealing column (8). The mounting post (1) and the mounting cylinder (2) are both located on the front side of the cover (7), and the mounting post (1) is installed on the front side of the cover (7). The cover (7) and the two assembly rings (6) are both located inside the protective tube (4), and the two retaining rings (5) are respectively installed on the rear side of the two assembly rings (6).

3. The double-layer subsea pipeline plugging device according to claim 2, characterized in that: Fasteners are provided on the outside of both ends of the two assembly rings (6); Each set of fasteners includes two spaced fastening bolts (10), and each fastening bolt (10) has a fastening nut (11) threaded to the bottom of its outer side. The two assembly rings (6) are threaded together by the fastening bolts (10) and the fastening nuts (11).

4. A double-layer subsea pipeline plugging device according to claim 2, characterized in that: The front side of the cover (7) is provided with a plurality of spaced fixing bolts (12), the fixing bolts (12) penetrate the cover (7) and extend into the assembly ring (6), and the fixing bolts (12) are threadedly connected to the assembly ring (6); The connecting ring (3) has a groove (13) on its rear side, and multiple fixing bolts (12) are located inside the groove (13).

5. A double-layer subsea pipeline plugging device according to claim 2, characterized in that: The protective tube (4) has sealing grooves (14) inside both the front and rear ends. The sealing grooves (14) are equipped with sealing rings (15). The sealing rings (15) at the rear end of the protective tube (4) are fitted outside the two retaining rings (5), and the sealing rings (15) at the front end of the protective tube (4) are fitted outside the cover (7).

6. A double-layer subsea pipeline plugging device according to claim 1, characterized in that: The protective pipe (4) is fixedly connected to the top of the conveying pipe (16), and a valve (17) is installed on the outside of the top of the conveying pipe (16), and a connection port (18) is fixedly connected to the top of the conveying pipe (16).

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