A synchronous submarine bottom mud entry launching device for multiple probes

Abstract

The application discloses a kind of multiple detector synchronous seabed into mud's launching device, including disc base, four identical specifications support angle steels are welded in disc base lower part, support angle steel end is equipped with lifting ring base, detachable lifting ring is installed on lifting ring base, depth gauge base is equipped on one side of lifting ring base, depth gauge is additionally installed on depth gauge base;Disc base is additionally equipped with four deepwater electromagnetic valves around center of circle, and deepwater electromagnetic valve is connected by multiple three-way connection gas inlet connecting pipe between deepwater electromagnetic valve.This application has the advantages compared with prior art: simple and practical overall structure, reasonable selection, connection and working mode of parts, greatly reduce the inconvenience of traditional equipment in use, the drawbacks of poor practicality and placement effect, effectively improve the detection efficiency and precision, simple construction, visible and controllable water surface in mud state, reusable, a device is placed once a plurality of detectors.

Description

Technical Field

[0001] This invention relates to marine exploration equipment, specifically a device for simultaneously deploying multiple detectors into seabed mud. Background Technology

[0002] Oil and gas gathering and transportation is a crucial part of offshore oil and gas development and serves as the "lifeline" of offshore oil and gas production systems. Damage to subsea pipelines can lead to oil and gas leaks and serious consequences. Not only will the normal production of offshore oil and gas fields be affected, causing huge economic losses, but more seriously, oil and gas leaks will also cause severe pollution to the marine environment, damage the marine ecosystem, and generate adverse social impacts.

[0003] To monitor the safety status of subsea pipelines in real time, especially the health monitoring of subsea pipeline leaks, using a small, burial-compatible subsea detector is an effective solution. Considering the detector's operating environment—buried in the seabed mud—this not only effectively monitors leak signals but also ensures the detector is protected from external hazards such as anchored nets and trawls.

[0004] When it is necessary to bury multiple detectors in the same location at one time, and then study the effect of the detectors on the burial depth, a device for burying multiple detectors simultaneously in the same location is urgently needed. Summary of the Invention

[0005] The technical problem that this invention aims to solve is that existing seabed exploration devices suffer from poor deployment results and low deployment efficiency due to deficiencies in the functional design of related equipment, resulting in poor detection accuracy and a significant waste of manpower and resources, which does not meet current needs.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a device for simultaneously deploying multiple detectors into seabed sediment, comprising a disc base, four identical support angle steels welded to the lower part of the disc base, a lifting ring base at the end of the support angle steels, a detachable lifting ring installed on the lifting ring base, a depth gauge base on one side of the lifting ring base, and a depth gauge installed on the depth gauge base; four deep-water solenoid valves are evenly distributed around the center of the disc base, and the deep-water solenoid valves are connected by multiple tee-connected air inlet pipes, one of which is selected as the starting connector for connecting a high-pressure hose for external air supply; a cable junction box is provided on the disc base, and an underwater tilt sensor is installed at the edge of the disc base;

[0007] A direct injection pipe is installed inside the disc base. Three side injection pipes are welded to the outside of the direct injection pipe. The nozzle body, consisting of the direct injection pipe and the side injection pipes, is connected to the disc base through a fixing pad. The nozzle body is equipped with three protective and separation shells from top to bottom. The protective and separation shells include a side plate. The upper part of the side plate is connected to a top inclined cone plate through a top limiting plate, and the lower part is connected to a bottom inclined cone plate through a bottom support plate. A top cover plate is installed on the upper part of the top inclined cone plate, and a bottom cover plate is installed on the lower part of the bottom inclined cone plate. An extended torsion steel plate is bolted to the outside of the side plate, and a torsion spring is bolted to the tail of the extended torsion steel plate. A detector is installed inside the protective and separation shell.

[0008] The side nozzle is equipped with a side nozzle hole. The deep water solenoid valve directly controls the opening and closing of the direct nozzle and the side nozzle. High-pressure gas is ejected from the side nozzle hole. The detector is pushed by the high-pressure gas ejected from the side nozzle hole, causing the detector to pass through and detach from the whole device.

[0009] Compared with the prior art, the advantages of this invention are: the overall structure is simple and practical, the selection, connection and working method of the components are reasonable, which greatly reduces the inconvenience and poor placement effect of traditional equipment, effectively improves the detection efficiency and accuracy, is easy to construct, the water surface is visible and controllable in the mud state, it is reusable, and one device can deploy multiple detectors at one time.

[0010] As an improvement, the upstream of the deep-water solenoid valve is connected to the air inlet pipe and the tee, and the downstream is connected to the direct injection pipe and the side injection pipe.

[0011] As an improvement, the torsion spring acts as a single-phase switch, opening a path for the detector to detach from the overall device when it is thrust by the high-pressure gas from the side nozzle.

[0012] As an improvement, the side spray pipe includes three pipes marked A, B, and C, with their respective side spray holes being side spray hole A, side spray hole B, and side spray hole C, respectively; the direct spray pipe does not have side spray holes on its side, but only a direct spray hole D at the bottom.

[0013] As an improvement, the side nozzles of the three side nozzles are all installed with the side nozzles facing outwards.

[0014] As an improvement, the three protective and separation housings are installed at vertical heights of 0.5m, 1m, and 2m respectively from the disk base. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a device for simultaneously deploying multiple detectors into seabed mud.

[0016] Figure 2 This is a schematic diagram of the enlarged region A.

[0017] Figure 3 This is a top-view structural diagram of the protective and separation shell of a device for simultaneously deploying multiple detectors into seabed mud.

[0018] Figure 4 This is a schematic diagram showing the installation position of the torsion spring in a device for simultaneously deploying multiple detectors into seabed mud.

[0019] Figure 5 This is a top-view structural diagram of the direct nozzle and side nozzles of a device for simultaneously deploying multiple detectors into seabed mud.

[0020] Figure 6 This is a top-view diagram showing the orientation of the three protective and separation shells of a device for simultaneously deploying multiple detectors into seabed mud.

[0021] Figure 7 This is a top-view structural diagram of a device for simultaneously deploying multiple detectors into seabed mud.

[0022] Figure 8 This is a schematic diagram of the working state of a device that simultaneously deploys multiple detectors into seabed mud.

[0023] Figure 9 This is a schematic diagram of the structure of region B.

[0024] As shown in the figure: 1. Fixed pad, 2. Cable junction box, 3. Deep-water solenoid valve, 4. Underwater tilt sensor, 5. Supporting angle steel, 6. Removable lifting ring, 7. Depth gauge, 8. Lifting ring base, 9. Depth gauge base, 10. Disc base, 11. Direct spray nozzle, 12. Side spray nozzle, 13. Protective and separation housing, 14. Top inclined cone plate, 15. Side spray hole, 16. Side plate, 17. Bottom inclined cone plate, 18. Top cover plate, 19. Top limiter 20. Position plate, detector, 21. Extended torsion steel sheet, 22. Bottom support plate, 23. Bottom cover plate, 24. Torsion spring, 25. Side spray hole A, 26. Side spray hole B, 27. Side spray hole C, 28. Direct spray hole D, 29. Sealed connecting pipe, 30. T-junction, 31. Air inlet connecting pipe, 32. Pressure transmitter, 33. Crane, 34. Underwater high-pressure hose, 35. Cable, 36. Detector cable, 37. Boat, 38. Water surface, 39. Mud surface. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] In a specific implementation, this invention provides a device for simultaneously deploying multiple detectors into seabed sediment, comprising a disc base 10. Four identical support angle steels 5 are welded to the lower part of the disc base 10. Each support angle steel 5 has a lifting ring base 8 at its end, on which a detachable lifting ring 6 is installed. A depth gauge base 9 is located on one side of the lifting ring base 8, and a depth gauge 7 is mounted on the depth gauge base 9. Four deep-water solenoid valves 3 are evenly distributed around the center of the disc base 10. The deep-water solenoid valves 3 are connected by multiple tee joints 30 connected by air inlet pipes 31. One of the tee joints 30 is selected as the starting connector for connecting a high-pressure hose for external air supply. A cable junction box 2 is provided on the disc base 10, and an underwater tilt sensor 4 is installed at the edge of the disc base 10.

[0027] A direct injection pipe 11 is installed inside the disc base 10. Three side injection pipes 12 are welded to the outside of the direct injection pipe 11. The nozzle body composed of the direct injection pipe 11 and the side injection pipes 12 is connected to the disc base 10 through a fixing pad 1. The nozzle body is equipped with three protective and separation housings 13 from top to bottom. Each protective and separation housing 13 includes a side plate 16. The upper part of the side plate 16 is connected to a top inclined cone plate 14 through a top limiting plate 19, and the lower part is connected to a bottom inclined cone plate 17 through a bottom support plate 22. A top cover plate 18 is installed on the upper part of the top inclined cone plate 14, and a bottom cover plate 23 is installed on the lower part of the bottom inclined cone plate 17. An extended torsion steel sheet 21 is bolted to the outside of the side plate 16, and a torsion spring 24 is bolted to the tail of the extended torsion steel sheet 21. A detector 20 is installed inside the protective and separation housing 13.

[0028] The side nozzle 12 is provided with a side nozzle 15. The deep water solenoid valve 3 directly controls the opening and closing of the direct nozzle 11 and the side nozzle 12. High-pressure gas is ejected from the side nozzle 15. The detector 20 is pushed by the high-pressure gas ejected from the side nozzle 15, causing the detector 20 to pass through and detach from the whole device.

[0029] The deep-water solenoid valve 3 is connected upstream to the air inlet pipe 31 and the tee 30 via a sealed connecting pipe 29, and downstream to the direct injection pipe 11 and the side injection pipe 12 via a sealed connecting pipe 29.

[0030] The torsion spring 24 serves as a single-phase switch, opening a path for the detector 20 to detach from the overall device when it is thrust by the high-pressure gas from the side nozzle 15.

[0031] The side spray pipe 12 includes three pipes marked A, B and C, with their respective side spray holes 15 being side spray hole 25 (A), side spray hole 26 (B) and side spray hole 27 (C); the direct spray pipe 11 does not have side spray holes 15 on its side, but only has a direct spray hole 28 (D) at the bottom.

[0032] The side nozzles 15 of the three side nozzles 12 are all arranged radially outwards during installation.

[0033] The three protective and separation housings 13 are respectively installed at a vertical height of 0.5m, 1m and 2m from the disk base 10.

[0034] The working principle of this invention: This device consists of a disc base, supporting angle steel, lifting ring base, depth gauge base, cable junction box, fixing buckle, underwater tee, air inlet connection pipe, air leakage connection pipe, deep-water solenoid valve, fixing pad, direct spray pipe, side spray pipe, leakage hole, and protective and separation shell. The protective and separation shell includes: side flat plates, top cover plate, bottom cover plate, top limiting plate, bottom support plate, extended torsion steel sheet, torsion spring, and other components.

[0035] The circular base is supported by welded angle steel brackets, which, together with the direct injection pipe and side injection pipes, form the overall frame of the device. On the circular base are a lifting ring base, a depth gauge base, a cable junction box, and a deep-water solenoid valve. The direct injection pipe and side injection pipes are welded together and connected to the base via a fixing plate. The deep-water solenoid valve is connected upstream to an air inlet hose / tee via a connecting pipe, and downstream to both the direct injection pipe and side injection pipe via a connecting pipe. The solenoid valve controls the on / off operation of all four injection pipes. Protective and separation housings are installed at -0.5m, -1m, and -2m below the base from the three side injection pipes, radiating outwards. The main function of these housings is to protect the detector during descent and to separate the device from the detector below the mud when the predetermined depth is reached. The upper and lower cover plates are sloped to reduce descent resistance and facilitate the descent operation. Torsion springs provide a single-phase switch, allowing the detector to pass smoothly and detach from the device when thrust by high-pressure gas from the side injection holes.

[0036] Before using this device, all relevant components, such as slings, detectors, depth gauges, pressure transmitters, tilt sensors, solenoid valve connections, and high-pressure hoses, are installed and tested on the ship. A crane lowers the device to the seabed, with the nozzle touching the mud. The attitude and tilt of the underwater sensors are observed from the water surface. Once the device is stable, the air supply pressure is adjusted, and the pressure transmitter reading is monitored. After reaching the predetermined value, solenoid valve D is opened. High-pressure air flows through the high-pressure flexible hose, underwater tee, air inlet connection pipe, solenoid valve, leak connection pipe, and direct nozzle, exiting through direct nozzle D. The high-pressure air impacts the soil below, loosening it. The device then slowly sinks under its own weight.

[0037] During the sinking process, the tilt angle of the water surface monitoring device must be less than 10 degrees. If it exceeds 10 degrees, two adjustment schemes can be adopted. First, use a crane to lift the device to restore the tilt angle, close solenoid valve D, increase the air source pressure, and once a higher pressure value is reached, open solenoid valve D again to impact the soil below. Second, replace the gas remaining in the high-pressure hose with water, and then use a high-pressure air source to push the water, causing the water jet from nozzle D to spray a hydraulically cutting water jet to impact the soil below. Throughout the entire process, maintain the device's tilt angle greater than 10 degrees. Both schemes can be repeated.

[0038] Once the device reaches the set depth, detector separation can begin. When the pressure transmitter reaches the set value, first open solenoid valve C, ejecting high-pressure gas through side nozzle C. The gas accumulates within the protection and separation housing, pushing the detector to move and disengage the torsion spring, thus separating the detector. Similarly, proceed with the separation of detectors B and A.

[0039] After the separation operation is completed, a recovery device can be selected according to the site conditions. When using the recovery device, the D solenoid valve can be selectively opened to loosen the air bubbles around the nozzle and quickly lift and recover them.

[0040] This device employs a remotely controlled underwater system, utilizing the high-pressure cutting principle of jet streams and the principle of gravity-based sinking to penetrate the mud for construction, making it simple and easy to implement. Through the ingenious design of the protective and separation hull, it eliminates the need for large marine equipment and expensive, high-risk manual diving.

[0041] Given the need for repeated use in seawater, the above components are made of stainless steel to reduce seawater corrosion. Special treatment is required for the connections and cable wiring of these components to ensure high pressure, watertightness, and no air or liquid leakage.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A device for simultaneously deploying multiple detectors into seabed mud, comprising a disc base (10), characterized in that: The lower part of the disc base (10) is welded with four support angle steels (5) of the same specification. The end of the support angle steel (5) is provided with a lifting ring base (8). A detachable lifting ring (6) is installed on the lifting ring base (8). A depth gauge base (9) is provided on one side of the lifting ring base (8). A depth gauge (7) is installed on the depth gauge base (9). Four deep-water solenoid valves (3) are equally distributed around the center of the disc base (10). The deep-water solenoid valves (3) are connected by an air inlet pipe (31) connected by multiple tees (30). One of the tees (30) is selected as the starting connector for connecting a high-pressure hose for external air supply. A cable junction box (2) is provided on the disc base (10). An underwater tilt sensor (4) is installed at the edge of the disc base (10). A direct injection pipe (11) is installed inside the disc base (10). Three side injection pipes (12) are welded to the outside of the direct injection pipe (11). The nozzle body composed of the direct injection pipe (11) and the side injection pipes (12) is connected to the disc base (10) through a fixing pad (1). The nozzle body is equipped with three protective and separation shells (13) from top to bottom. The protective and separation shells (13) include a side plate (16). The upper part of the side plate (16) is connected to the top limiting plate (19). It has a top inclined cone plate (14), and a bottom inclined cone plate (17) is connected to the bottom through a bottom support plate (22). A top cover plate (18) is installed on the top of the top inclined cone plate (14), and a bottom cover plate (23) is installed on the bottom of the bottom inclined cone plate (17). An extended torsion steel sheet (21) is bolted to the outside of the side plate (16), and a torsion spring sheet (24) is bolted to the tail of the extended torsion steel sheet (21). A detector (20) is installed inside the protection and separation housing (13). The side nozzle (12) is provided with a side nozzle (15). The deep water solenoid valve (3) directly controls the opening and closing of the direct nozzle (11) and the side nozzle (12). High pressure gas is ejected from the side nozzle (15). The detector (20) is pushed by the high pressure gas ejected from the side nozzle (15), causing the detector (20) to pass through and detach from the whole device. The deep-water solenoid valve (3) is connected upstream to the air inlet pipe (31) and the tee (30) via a sealed connecting pipe (29), and downstream to the direct injection pipe (11) and the side injection pipe (12) via a sealed connecting pipe (29). The torsion spring (24) provides the function of a single-phase switch, opening the passage for the detector (20) to detach from the whole device when the detector (20) is thrust by the high-pressure gas from the side nozzle (15); The side spray pipe (12) includes three pipes marked A, B and C, and their respective side spray holes (15) are A side spray hole (25), B side spray hole (26) and C side spray hole (27); the direct spray pipe (11) does not have side spray holes (15) on its side, but only has a D direct spray hole (28) at the bottom.

2. The device for simultaneously deploying multiple detectors into seabed mud according to claim 1, characterized in that: The side spray holes (15) of the three side spray pipes (12) are all arranged radially outward when installed.

3. The device for simultaneously deploying multiple detectors into seabed mud according to claim 1, characterized in that: The three protective and separation shells (13) are respectively installed at a vertical height of 0.5m, 1m and 2m from the disk base (10).

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