Protection structure for submarine oil and gas conveying pipeline

Abstract

The invention discloses a seabed oil and gas transmission pipeline protection structure, which relates to the field of pipeline protection and comprises a first shell, a second shell is arranged on one side of the first shell, a hinge is arranged between the first shell and the second shell, battery bins are fixedly mounted on the inner walls of the first shell and the second shell, and clamping mechanisms are arranged at the tail ends of the first shell and the second shell. The clamping mechanism comprises a limiting clamping seat, a movable shaft, an in-out notch, a limiting screw, a limiting screw hole and limiting supporting legs, the limiting supporting legs are fixedly installed at the tail ends of the first shell and the second shell, the movable shaft is arranged on the limiting supporting leg at the tail end of the second shell, the limiting clamping seat is movably installed on the movable shaft, and the top end of the limiting clamping seat is provided with the in-out notch. Limiting screws are arranged in the in-out notches, and driving mechanisms are fixedly installed on the inner walls of the first shell and the second shell. The submarine oil and gas conveying pipeline protection structure has the good protection performance.

Description

Technical Field

[0001] The present invention relates to the field of pipeline protection, and particularly to a protection structure for subsea oil and gas pipelines. Background Art

[0002] Oil and gas pipelines (also known as pipelines and pipe lines) are composed of oil pipes and their accessories. According to the needs of the technological process, corresponding oil pump units are equipped and designed and installed into a complete pipeline system to complete the tasks of oil unloading and transfer. The oil pipeline system, that is, the pipeline system for transporting petroleum and petroleum products, mainly consists of oil pipelines, oil transfer stations and other auxiliary related equipment. It is one of the main equipment in the oil storage and transportation industry and also the main transportation equipment for crude oil and petroleum products. Compared with railway and road oil transportation, which are also land transportation methods, pipeline oil transportation has the characteristics of large transportation volume, good airtightness, low cost and high safety factor. Subsea oil and gas pipelines usually need to be heat-insulated, that is, a heat-insulating layer and a heat-insulating sleeve are covered outside the pipeline. Some parts of such pipelines will be suspended in seawater at the connection with offshore platforms. During use, some fish like to peck at the outer heat-insulating layer and heat-insulating sleeve of the pipeline, resulting in damage to the heat-insulating layer and heat-insulating sleeve, and ultimately affecting the heat-insulating effect and service life of the oil and gas pipeline. Summary of the Invention

[0003] The main purpose of the present invention is to provide a protection structure for subsea oil and gas pipelines, which can effectively solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A protective structure for a submarine oil and gas transmission pipeline, comprising a first outer shell, a second outer shell is provided on one side of the first outer shell, a hinge is provided between the first outer shell and the second outer shell, battery compartments are fixedly installed on the inner walls of the first outer shell and the second outer shell, a clamping mechanism is provided at the ends of the first outer shell and the second outer shell, the clamping mechanism includes a limit card seat, a movable shaft, an access gap, a limit screw, a limit screw hole and a limit support leg, the limit support leg is fixedly installed at the ends of the first outer shell and the second outer shell, a movable shaft is provided on the limit support leg at the end of the second outer shell, a limit card seat is movably installed on the movable shaft, an access gap is opened at the top of the limit card seat, a limit screw is provided in the access gap, a driving mechanism is fixedly installed on the inner walls of the first outer shell and the second outer shell, the driving mechanism includes a driving guide roller, a servo motor, a positioning wheel frame, a telescopic support column, a compression spring, an adjusting nut and a positioning support column, the positioning support column is fixedly installed on the inner walls of the first outer shell and the second outer shell, a compression spring is provided in the positioning support column, a telescopic support column is movably installed in the positioning support column, a positioning wheel frame is fixedly installed at the end of the telescopic support column, a driving guide roller is movably installed in the positioning wheel frame, a servo motor is fixedly installed on one side of the positioning wheel frame, a first driving module and a second driving module are fixedly installed on the outer walls of the first outer shell and the second outer shell, the first driving module includes a protective outer shell, a playback hole, a speaker, a playback module, a connecting screw and a connecting base, the connecting base is fixedly installed on the outer walls of the first outer shell and the second outer shell, a protective outer shell is fixedly installed on the connecting base, a playback module is fixedly installed in the protective outer shell, a speaker is connected to the playback module, a playback hole is opened on the surface of the protective outer shell, the second driving module includes a rubber soft belt, a driving motor, a movable gap, a waterproof outer shell and a positioning bracket, the positioning bracket is fixedly installed on the outer walls of the first outer shell and the second outer shell, a waterproof outer shell is fixedly installed at the end of the positioning bracket, a driving motor is fixedly installed in the waterproof outer shell, and a rubber soft belt is fixedly installed at the output end of the driving motor.

[0005] Furthermore, a limit screw hole is opened at the top edge of the limit support leg, and the limit screw passes through the limit support leg through the limit screw hole.

[0006] Furthermore, the limit card seat is movably installed on the limit support leg at the end of the second outer shell through the movable shaft, the limit screw passes through the limit card seat through the access gap, and the limit card seat is restricted on the limit support leg by the limit screw.

[0007] Furthermore, an adjusting nut is provided at the end edge of the positioning support column, and the telescopic support column is restricted on the positioning support column by the adjusting nut.

[0008] Furthermore, a movable groove is provided in the positioning pillar, and the telescopic pillar is movably installed in the positioning pillar through the movable groove, one end of the compression spring is connected to the bottom of the movable groove, and the other end of the compression spring is connected to the positioning pillar, and the driving guide roller is installed at the end of the telescopic pillar through a positioning wheel frame, and a through hole is provided on one side surface of the positioning wheel frame, and the output end of the servo motor passes through the positioning wheel frame through the through hole and is connected to the driving guide roller.

[0009] Furthermore, screws are provided at four corners of the surface of the connection base, and the connection base is fixed to the first shell and the second shell by the screws.

[0010] Furthermore, the protective shell is fixed to the connecting base by screws, the speaker is tightly attached to the playback hole, and a sealing ring is provided at the connection between the protective shell and the connecting base.

[0011] Furthermore, a movable notch is provided on one side of the waterproof housing, and the output end of the drive motor extends out of the waterproof housing through the movable notch.

[0012] Furthermore, threaded holes are provided on the first shell and the second shell, the positioning bracket is fixed on the first shell and the second shell through the threaded holes, and the driving motor is fixed to the end of the positioning bracket through the waterproof shell.

[0013] Furthermore, the first shell is movably mounted on the second shell by hinges, the first shell and the second shell are restrained together by a clamping mechanism, and the battery compartment is fixed to the inner walls of the first shell and the second shell by screws.

[0014] Compared with the prior art, the present invention has the following beneficial effects: During use, the first shell and the second shell can be clamped on the oil and gas pipeline. After the first shell and the second shell are clamped on the oil and gas pipeline, the driving guide roller will be tightly attached to the oil and gas pipeline. After the driving guide roller is tightly attached to the oil and gas pipeline, the servo can be started. After starting the servo motor, the entire device can go down along the oil and gas pipeline into the seabed.

[0015] After the entire device enters the seabed along the oil and gas pipeline, the playback module can be activated. After the playback module is activated, the speaker can emit sounds that large fish are afraid of, thereby driving away the fish near the oil and gas pipeline, thereby preventing large fish from contacting the oil and gas pipeline and reducing the risk of the oil and gas pipeline being pecked.

[0016] At the same time, during use, the second driving module can be installed on the first shell and the second shell through the threaded hole. After the second driving module is installed on the first shell and the second shell, the drive motor can be started. After starting the drive motor, the rubber soft belt will rotate, thereby driving away large fish that have approached the oil and gas pipeline. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the partial structure of the present invention; Figure 3 is a schematic diagram of the clamping mechanism of the present invention; Figure 4 is a schematic diagram of the driving mechanism of the present invention; Figure 5 is a schematic diagram of the first driving module of the present invention; Figure 6 is a schematic diagram of the second driving module of the present invention; Figure 7 is a top view of the overall structure of the present invention.

[0018] In the figure: 1, hinge; 2, battery compartment; 3, first outer shell; 4, second outer shell; 5, clamping mechanism; 501, limit card seat; 502, movable shaft; 503, access notch; 504, limit screw; 505, limit screw hole; 506, limit support leg; 6, driving mechanism; 601, driving guide roller; 602, servo motor; 603, positioning wheel frame; 604, telescopic support pillar; 605, compression spring; 606, adjusting nut; 607, positioning pillar; 7, first driving module; 701, protective outer shell; 702, playing hole; 703, speaker; 704, playing module; 705, connecting screw; 706, connecting base; 8, second driving module; 801, rubber soft belt; 802, driving motor; 803, movable notch; 804, waterproof outer shell; 805, positioning bracket. Detailed Description of the Invention

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0020] Such as Figures 1-7As shown in the figure, a protective structure for a subsea oil and gas pipeline includes a first outer shell 3. A second outer shell 4 is provided on one side of the first outer shell 3. A hinge 1 is provided between the first outer shell 3 and the second outer shell 4. Battery compartments 2 are fixedly installed on the inner walls of both the first outer shell 3 and the second outer shell 4. A clamping mechanism 5 is provided at the ends of the first outer shell 3 and the second outer shell 4. The clamping mechanism 5 includes a limit clamping seat 501, a movable shaft 502, an access notch 503, a limit screw 504, a limit screw hole 505, and a limit support foot 506. The limit support foot 506 is fixedly installed at the ends of the first outer shell 3 and the second outer shell 4. A movable shaft 502 is provided on the limit support foot 506 at the end of the second outer shell 4. A limit clamping seat 501 is movably installed on the movable shaft 502. An access notch 503 is opened at the top of the limit clamping seat 501. A limit screw 504 is provided in the access notch 503. A driving mechanism 6 is fixedly installed on the inner walls of the first outer shell 3 and the second outer shell 4. The driving mechanism 6 includes a driving guide roller 601, a servo motor 602, a positioning wheel frame 603, a telescopic support column 604, a compression spring 605, an adjusting nut 606, and a positioning support column 607. The positioning support column 607 is fixedly installed on the inner walls of the first outer shell 3 and the second outer shell 4. A compression spring 605 is provided inside the positioning support column 607. A telescopic support column 604 is movably installed inside the positioning support column 607. A positioning wheel frame 603 is fixedly installed at the end of the telescopic support column 604. A driving guide roller 601 is movably installed inside the positioning wheel frame 603. A servo motor 602 is fixedly installed on one side of the positioning wheel frame 603. A first driving module 7 and a second driving module 8 are fixedly installed on the outer walls of the first outer shell 3 and the second outer shell 4. The first driving module 7 includes a protective shell 701, a playback hole 702, a speaker 703, a playback module 704, a connecting screw 705, and a connecting base 706. The connecting base 706 is fixedly installed on the outer walls of the first outer shell 3 and the second outer shell 4. A protective shell 701 is fixedly installed on the connecting base 706. A playback module 704 is fixedly installed inside the protective shell 701. A speaker 703 is connected to the playback module 704. A playback hole 702 is opened on the surface of the protective shell 701. The second driving module 8 includes a rubber soft belt 801, a driving motor 802, a movable notch 803, a waterproof shell 804, and a positioning bracket 805. The positioning bracket 805 is fixedly installed on the outer walls of the first outer shell 3 and the second outer shell 4. A waterproof shell 804 is fixedly installed at the end of the positioning bracket 805. A driving motor 802 is fixedly installed inside the waterproof shell 804. A rubber soft belt 801 is fixedly installed at the output end of the driving motor 802. The first outer shell 3 is movably installed on the second outer shell 4 through the hinge 1. The first outer shell 3 and the second outer shell 4 are restricted together by the clamping mechanism 5. The battery compartments 2 are fixed to the inner walls of the first outer shell 3 and the second outer shell 4 by screws.

[0021] Embodiment 1 In order to enable the entire device to enter the seabed along the pipeline, a second outer shell 4 is provided on one side of the first outer shell 3. A hinge 1 is provided between the first outer shell 3 and the second outer shell 4. Battery compartments 2 are fixedly installed on the inner walls of both the first outer shell 3 and the second outer shell 4. A clamping mechanism 5 is provided at the ends of the first outer shell 3 and the second outer shell 4. The clamping mechanism 5 includes a limit clamping seat 501, a movable shaft 502, an access notch 503, a limit screw 504, a limit screw hole 505, and a limit support leg 506. The limit support leg 506 is fixedly installed at the ends of the first outer shell 3 and the second outer shell 4. A movable shaft 502 is provided on the limit support leg 506 at the end of the second outer shell 4. A limit clamping seat 501 is movably installed on the movable shaft 502. An access notch 503 is provided at the top of the limit clamping seat 501. A limit screw 504 is provided in the access notch 503. A driving mechanism 6 is fixedly installed on the inner walls of the first outer shell 3 and the second outer shell 4. The driving mechanism 6 includes a driving guide roller 601, a servo motor 602, a positioning wheel frame 603, a telescopic support column 604, a compression spring 605, an adjusting nut 606, and a positioning support column 607. The positioning support column 607 is fixedly installed on the inner walls of the first outer shell 3 and the second outer shell 4. A compression spring 605 is provided inside the positioning support column 607. A telescopic support column 604 is movably installed inside the positioning support column 607. The end of the telescopic support column 604 is fixedly installed with a positioning wheel frame 603. A driving guide roller 601 is movably installed inside the positioning wheel frame 603. A servo motor 602 is fixedly installed on one side of the positioning wheel frame 603. A limit screw hole 505 is provided at the top edge of the limit support leg 506. The limit screw 504 passes through the limit support leg 506 through the limit screw hole 505. The limit clamping seat 501 is movably installed on the limit support leg 506 at the end of the second outer shell 4 through the movable shaft 502. The limit screw 504 passes through the limit clamping seat 501 through the access notch 503. The limit clamping seat 501 is restricted on the limit support leg 506 by the limit screw 504. An adjusting nut 606 is provided at the end edge of the positioning support column 607. The telescopic support column 604 is restricted on the positioning support column 607 by the adjusting nut 606. An activity groove is provided inside the positioning support column 607. The telescopic support column 604 is movably installed inside the positioning support column 607 through the activity groove. One end of the compression spring 605 is connected to the bottom of the activity groove, and the other end of the compression spring 605 is connected to the positioning support column 607. The driving guide roller 601 is installed at the end of the telescopic support column 604 through the positioning wheel frame 603. A through hole is provided on the surface of one side of the positioning wheel frame 603. The output end of the servo motor 602 passes through the positioning wheel frame 603 through the through hole and is then connected to the driving guide roller 601. During use, the first outer shell 3 and the second outer shell 4 can be clamped on the oil and gas pipeline. After the first outer shell 3 and the second outer shell 4 are clamped on the oil and gas pipeline, the driving guide roller 601 will be closely attached to the oil and gas pipeline. After the driving guide roller 601 is closely attached to the oil and gas pipeline, the servo motor 602 can be started. After starting the servo motor 602, the entire device can enter the seabed along the oil and gas pipeline downward.

[0022] Embodiment 2 To prevent large fish from coming into contact with the oil and gas pipeline, the first driving module 7 includes a protective housing 701, a playback hole 702, a speaker 703, a playback module 704, connecting screws 705 and a connecting base 706. The connecting base 706 is fixedly installed on the outer walls of the first housing 3 and the second housing 4. The protective housing 701 is fixedly installed on the connecting base 706. The playback module 704 is fixedly installed inside the protective housing 701. The speaker 703 is connected to the playback module 704. The playback hole 702 is formed on the surface of the protective housing 701. Screws are provided at the four corner positions on the surface of the connecting base 706. The connecting base 706 is fixed to the first housing 3 and the second housing 4 by the screws. The protective housing 701 is fixed to the connecting base 706 by the screws. The speaker 703 is closely attached to the playback hole 702. A sealing ring is provided at the connection between the protective housing 701 and the connecting base 706. After the whole device enters the seabed along the oil and gas pipeline, the playback module 704 can be started. After starting the playback module 704, the speaker 703 can emit sounds that large fish are afraid of, thereby driving away the fish near the oil and gas pipeline, and further preventing large fish from coming into contact with the oil and gas pipeline, reducing the risk of the oil and gas pipeline being pecked.

[0023] Embodiment 3 To drive away the large fish that have already approached, the second driving module 8 includes a rubber soft belt 801, a driving motor 802, a movable notch 803, a waterproof housing 804 and a positioning bracket 805. The positioning bracket 805 is fixedly installed on the outer walls of the first housing 3 and the second housing 4. The waterproof housing 804 is fixedly installed at the end of the positioning bracket 805. The driving motor 802 is fixedly installed inside the waterproof housing 804. The output end of the driving motor 802 is fixedly installed with the rubber soft belt 801. A movable notch 803 is formed on one side of the waterproof housing 804. The output end of the driving motor 802 extends out of the waterproof housing 804 through the movable notch 803. Threaded holes are formed on the first housing 3 and the second housing 4. The positioning bracket 805 is fixed to the first housing 3 and the second housing 4 through the threaded holes. The driving motor 802 is fixed to the end of the positioning bracket 805 through the waterproof housing 804. At the same time, during use, the second driving module 8 can be installed on the first housing 3 and the second housing 4 through the threaded holes. After the second driving module 8 is installed on the first housing 3 and the second housing 4, the driving motor 802 can be started. After starting the driving motor 802, the rubber soft belt 801 will rotate, thereby driving away the large fish that have already approached the oil and gas pipeline.

[0024] It should be noted that the present invention is a protective structure for submarine oil and gas transmission pipelines. In actual use, first, the first outer shell 3 and the second outer shell 4 are sleeved on the oil and gas pipeline, and then the limit screw 504 is tightened. Since the limit screw 504 passes through the limit support leg 506 through the limit screw hole 505, and the limit card seat 501 is movably installed on the limit support leg 506 at the end of the second outer shell 4 through the movable shaft 502, and the limit screw 504 passes through the limit card seat 501 through the access notch 503, and the limit card seat 501 is restricted on the limit support leg 506 by the limit screw 504, so after tightening the limit screw 504, the first outer shell 3 and the second outer shell 4 can be clamped on the oil and gas pipeline. Because a movable groove is provided in the positioning support column 607, and the telescopic support column 604 is movably installed in the positioning support column 607 through the movable groove, and one end of the compression spring 605 is connected to the bottom of the movable groove, and the other end of the compression spring 605 is connected to the positioning support column 607, so after the first outer shell 3 and the second outer shell 4 are clamped on the oil and gas pipeline, the compression spring 605 will push the driving guide roller 601 to closely adhere to the oil and gas pipeline. After the driving guide roller 601 closely adheres to the oil and gas pipeline, the servo motor 602 can be started. Since a through hole is provided on one surface of the positioning wheel frame 603, and the output end of the servo motor 602 passes through the positioning wheel frame 603 through the through hole and is then connected to the driving guide roller 601, so after starting the servo motor 602, the entire device can enter the seabed along the oil and gas pipeline. After the entire device enters the seabed along the oil and gas pipeline, the playback module 704 can be started. After starting the playback module 704, a sound that large fish are afraid of can be emitted through the speaker 703, thereby driving away the fish near the oil and gas pipeline, and further preventing large fish from contacting the oil and gas pipeline, reducing the risk of the oil and gas pipeline being pecked. At the same time, since threaded holes are provided on the first outer shell 3 and the second outer shell 4, and the positioning bracket 805 is fixed on the first outer shell 3 and the second outer shell 4 through the threaded holes, so the second driving module 8 can be installed on the first outer shell 3 and the second outer shell 4 through the threaded holes. After the second driving module 8 is installed on the first outer shell 3 and the second outer shell 4, the driving motor 802 can be started. After starting the driving motor 802, the rubber soft belt 801 will rotate, thereby driving away the large fish that have approached the oil and gas pipeline.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective structure for a subsea oil and gas transportation pipeline, characterized in that: It includes a first outer shell (3), a second outer shell (4) is provided on one side of the first outer shell (3), a hinge (1) is provided between the first outer shell (3) and the second outer shell (4), battery compartments (2) are fixedly installed on the inner walls of the first outer shell (3) and the second outer shell (4), a clamping mechanism (5) is provided at the ends of the first outer shell (3) and the second outer shell (4), the clamping mechanism (5) includes a limit clamping seat (501), a movable shaft (502), an access notch (503), a limit screw (504), a limit screw hole (505) and a limit support foot (506), the limit support foot (506) is fixedly installed at the ends of the first outer shell (3) and the second outer shell (4), a movable shaft (502) is provided on the limit support foot (506) at the end of the second outer shell (4), a limit clamping seat (501) is movably installed on the movable shaft (502), an access notch (503) is formed at the top of the limit clamping seat (501), a limit screw (504) is provided in the access notch (503), a driving mechanism (6) is fixedly installed on the inner walls of the first outer shell (3) and the second outer shell (4), the driving mechanism (6) includes a driving guide roller (601), a servo motor (602), a positioning wheel frame (603), a telescopic support column (604), a compression spring (605), an adjusting nut (606) and a positioning support column (607), the positioning support column (607) is fixedly installed on the inner walls of the first outer shell (3) and the second outer shell (4), a compression spring (605) is provided in the positioning support column (607), a telescopic support column (604) is movably installed in the positioning support column (607), a positioning wheel frame (603) is fixedly installed at the end of the telescopic support column (604), a driving guide roller (601) is movably installed in the positioning wheel frame (603), a servo motor (602) is fixedly installed on one side of the positioning wheel frame (603), a first driving module (7) and a second driving module (8) are fixedly installed on the outer walls of the first outer shell (3) and the second outer shell (4), the first driving module (7) includes a protective shell (701), a playing hole (702), a speaker (703), a playing module (704), a connecting screw (705) and a connecting base (706), the connecting base (706) is fixedly installed on the outer walls of the first outer shell (3) and the second outer shell (4), a protective shell (701) is fixedly installed on the connecting base (706), a playing module (704) is fixedly installed in the protective shell (701), a speaker (703) is connected to the playing module (704), a playing hole (702) is formed on the surface of the protective shell (701), the second driving module (8) includes a rubber soft belt (801), a driving motor (802), a movable notch (803), a waterproof shell (804) and a positioning bracket (805), the positioning bracket (805) is fixedly installed on the outer walls of the first outer shell (3) and the second outer shell (4), a waterproof shell (804) is fixedly installed at the end of the positioning bracket (805),A drive motor (802) is fixedly installed inside the waterproof housing (804), and a rubber soft belt (801) is fixedly installed at the output end of the drive motor (802).

2. The protective structure for a subsea oil and gas pipeline according to claim 1, wherein: A limit screw hole (505) is provided at the top edge of the limit support leg (506), and the limit screw (504) passes through the limit support leg (506) through the limit screw hole (505).

3. A protection structure for a submarine oil and gas pipeline according to claim 2, characterized in that: The limit clamping seat (501) is movably mounted on the limit support leg (506) at the end of the second housing (4) through a movable shaft (502). The limit screw (504) passes through the limit clamping seat (501) through the access notch (503), and the limit clamping seat (501) is restricted on the limit support leg (506) by the limit screw (504).

4. A protection structure for a subsea oil and gas pipeline according to claim 3, characterized in that: An adjusting nut (606) is provided at the end edge of the positioning support column (607), and the telescopic support column (604) is restricted on the positioning support column (607) by the adjusting nut (606).

5. A protection structure for a subsea oil and gas pipeline according to claim 4, characterized in that: An activity groove is formed in the positioning support column (607). The telescopic support column (604) is movably mounted in the positioning support column (607) through the activity groove. One end of the compression spring (605) is connected to the bottom of the activity groove, and the other end of the compression spring (605) is connected to the positioning support column (607). The driving guide roller (601) is mounted at the end of the telescopic support column (604) through a positioning wheel frame (603). A through hole is formed on one surface of the positioning wheel frame (603), and the output end of the servo motor (602) passes through the positioning wheel frame (603) through the through hole and is then connected to the driving guide roller (601).

6. The protection structure for a submarine oil and gas pipeline according to claim 5, wherein: Screws are provided at the four corner positions on the surface of the connection base (706), and the connection base (706) is fixed on the first housing (3) and the second housing (4) by the screws.

7. The protection structure for a subsea oil and gas pipeline according to claim 6, wherein: The protective housing (701) is fixed on the connection base (706) by screws. The speaker (703) is closely attached to the playback hole (702), and a sealing ring is provided at the connection between the protective housing (701) and the connection base (706).

8. A protection structure for a subsea oil and gas pipeline according to claim 7, characterized in that: An activity notch (803) is formed on one side of the waterproof housing (804), and the output end of the driving motor (802) extends out of the waterproof housing (804) through the activity notch (803).

9. A protection structure for a subsea oil and gas pipeline according to claim 8, characterized in that: Threaded holes are formed in the first housing (3) and the second housing (4). The positioning bracket (805) is fixed on the first housing (3) and the second housing (4) through the threaded holes, and the driving motor (802) is fixed at the end of the positioning bracket (805) through the waterproof housing (804).

10. A protection structure for a submarine oil and gas pipeline according to claim 9, characterized in that: The first housing (3) is movably mounted on the second housing (4) through a hinge (1). The first housing (3) and the second housing (4) are restricted together by a clamping mechanism (5). The battery compartment (2) is fixed on the inner walls of the first housing (3) and the second housing (4) by screws.

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