Arching detector for a floating offshore platform pontoon

Abstract

The application discloses a floating type offshore platform pontoon camber detection device and relates to the technical field of pontoon camber detection devices. The device comprises a mounting cover, an air pressure sensor, a temperature sensor and a battery pack are mounted on the inner wall of the mounting cover, the battery pack supplies power to the air pressure sensor and the temperature sensor respectively, a magnetic force suction disc is fixedly connected to the bottom end of the mounting cover through a transition net, the air pressure sensor and the temperature sensor are connected with a signal transmitter through data transmission cables respectively, and water-insoluble gas is injected into the mounting cover through a gas delivery pipe. The device has the beneficial effects that: after the mounting cover is adsorbed to the pontoon through the magnetic force suction disc, water-insoluble gas is injected into the mounting cover, so that a stable environment is formed in the pontoon and the internal and external pressure of the pontoon is kept consistent, the pressure is different at different depths underwater, the air pressure data in each mounting cover is transmitted, the pontoon camber is detected, the camber data is detected, and the device is convenient to operate and flexible to use.

Description

Technical Field

[0001] This invention relates to the technical field of float arch vertical detection equipment. Background Technology

[0002] Offshore platforms are structures that provide production and living facilities for maritime activities. Floating offshore platforms use pontoons as submersibles to submerge to a certain depth. After construction and submersion, these pontoons are prone to sag due to external factors such as ocean currents. To ensure the safety of offshore platform operations, it is necessary to detect the sag of the pontoons. Traditionally, this is done by installing Brillouin fiber optic sensors. However, installing sensors on existing offshore platforms is inconvenient due to pipeline layout and installation processes, making installation difficult and costly. Furthermore, after installation, the sensors are in direct contact with the marine environment, where temperature and marine life can interfere with detection, affecting accuracy. Additionally, for pontoons that have already sag, the foundation condition is lost when installing sensors, requiring recalibration, thus limiting the applicability of these sensors. Summary of the Invention

[0003] The technical problem to be solved by this invention is to address the aforementioned technical deficiencies by providing a sag detection device for floating marine platform pontoons. After the mounting cover is magnetically attached to the pontoon, an insoluble gas is injected into the mounting cover to create a stable environment inside the pontoon and maintain consistent pressure inside and outside. Since the pressure varies at different depths underwater, the device detects whether the pontoon is sag by transmitting the air pressure data from each mounting cover and measures the sag data. The device is convenient to operate and flexible to use.

[0004] The technical solution adopted in this invention is as follows: A plumb bob detection device for a floating marine platform buoy is provided, comprising a mounting cover; a buckle is fixedly connected to the outer wall of the mounting cover; a pressure sensor, a temperature sensor, and a battery pack are installed on the inner wall of the mounting cover, and the battery pack supplies power to the pressure sensor and the temperature sensor respectively; the mounting cover includes an open bottom end and an opposite top end; a magnetic chuck is fixedly connected to the bottom end of the mounting cover via a transition net, and the magnetic chuck is adsorbed and connected to the buoy; a buoy is fixedly connected to the top end of the mounting cover via a sling; a signal transmitter is installed inside the buoy; a data transmission cable and an air supply pipe are laid inside the sling; the pressure sensor and the temperature sensor are respectively connected to the signal transmitter via the data transmission cable; one end of the air supply pipe is sealed and inserted into the mounting cover and connected to the mounting cover, and the other end of the air supply pipe is sealed and exits the buoy; a one-way valve is installed inside the air supply pipe; an insoluble gas is injected into the mounting cover through the air supply pipe.

[0005] To further optimize this technical solution, the magnetic suction cup of the floating marine platform buoy and the adsorption end of the buoy are provided with grooves; limit switches are respectively installed on the outer wall of the buoy; the limit switches include push rods; the grooves and limit switches are correspondingly matched.

[0006] To further optimize this technical solution, a protective pad is fixedly attached to the outer wall of the magnetic chuck of the floating marine platform buoy; the shape of the protective pad corresponds to and matches the shape of the magnetic chuck.

[0007] To further optimize this technical solution, the water-insoluble gas in the buoyancy detection device of the floating marine platform is methane.

[0008] To further optimize this technical solution, the outer surface of the mounting cover of the floating marine platform buoy's vertical detection instrument is coated with a Teflon coating.

[0009] The beneficial effects of this invention are as follows:

[0010] 1. The mounting cover is lowered into the water by a rope and then submerged. The magnetic suction cup is used to attach the mounting cover to the detection position of the float. When the mounting cover is submerged, the probe is attached to the outer wall of the mounting cover by a buckle, thereby monitoring the submersion process and facilitating the adjustment of the submersion position of the mounting cover. Therefore, the installation position of the mounting cover is more accurate, convenient to operate, and flexible to use.

[0011] The mounting cover connects to the marine environment via a transition net during submersion, preventing marine life from entering the cover and interfering with the barometric pressure and temperature sensors, thus enhancing reliability. When the magnetic chuck attaches to the float, it presses the push rods of the limit switches at each detection position on the float, causing the limit switches to transmit signals to confirm the mounting cover is in place. The groove at the bottom of the magnetic chuck facilitates docking with the limit switches, making operation more precise. Even after the limit switch push rods disengage from the magnetic chuck, the limit switches again transmit signals, allowing the mounting cover to monitor and promptly detect if it leaves the detection position, further enhancing reliability.

[0012] When the magnetic chuck attracts the float, the magnetic chuck contacts the float through the protective pad attached to its outer wall. The protective pad increases the friction between the magnetic chuck and the float, thus making the installation of the mounting cover more secure and reliable.

[0013] 2. The installation covers can be deployed on the sea surface by means of a sling, which is convenient to operate. After the installation covers are deployed along the pontoons, the buoys float on the sea surface and are pulled by the installation covers by the slings, thus avoiding the buoys from drifting randomly on the sea surface. The denser the installation covers are deployed along the pontoons, the more data are collected, thus making the detection more accurate.

[0014] After the mounting covers are in place, insoluble gases, such as methane, are injected into the mounting covers through the gas supply pipes extending from the buoys. As the insoluble gases are injected, the seawater that fills the mounting covers is squeezed out through the transition net, and a stable space is formed inside the mounting covers. At this point, the pressure inside the mounting covers is consistent with the seawater pressure. However, the pressure varies at different depths underwater. Since the mounting covers are connected to the buoys, the air pressure sensors and temperature sensors inside the mounting covers transmit data to the signal transmitter via data transmission cables. After the data is transmitted to the terminal, the air pressure data inside each mounting cover is judged to determine whether the buoys are cambering. Temperature also affects air pressure, so accurate air pressure data inside the mounting covers can be easily obtained through the temperature data inside the mounting covers, thus making the data on buoy cambering detection more accurate.

[0015] 3. The deployment and installation of the mounting cover can both be carried out on the sea surface, and data transmission is unrestricted, thus making it flexible in use. The mounting cover detects the buoy's sag by injecting gas, avoiding interference from marine organisms with the pressure and temperature sensors, ensuring smooth operation. When the signal transmitter transmits data, it also transmits its own information synchronously, including the deployment location of the mounting cover, making data reception more intuitive and sag detection smoother and more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a stretched schematic diagram of the mounting cover structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the buoy structure of the present invention under tension.

[0020] In the diagram, 1. Mounting cover; 2. Clip; 3. Pressure sensor; 4. Temperature sensor; 5. Battery pack; 6. Transition net; 7. Magnetic chuck; 8. Suspension rope; 9. Buoy; 10. Signal transmitter; 11. Data transmission cable; 12. Air supply pipe; 13. One-way valve; 14. Groove; 15. Limit switch; 16. Push rod; 17. Protective pad; 18. Float. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-4As shown, the buoyancy detection device for a floating offshore platform includes a mounting cover 1; a buckle 2 is fixedly connected to the outer wall of the mounting cover 1; a pressure sensor 3, a temperature sensor 4, and a battery pack 5 are installed on the inner wall of the mounting cover 1, and the battery pack 5 supplies power to the pressure sensor 3 and the temperature sensor 4 respectively; the mounting cover 1 includes an open bottom end and an opposite top end; a magnetic suction cup 7 is fixedly connected to the bottom end of the mounting cover 1 through a transition net 6, and the magnetic suction cup 7 is attracted to the buoy 18; a buoy 9 is fixedly connected to the top end of the mounting cover 1 through a suspension rope 8; a signal transmitter 10 is installed inside the buoy 9; a data transmission cable 11 and an air supply pipe 12 are laid inside the suspension rope 8; the pressure sensor 3 and the temperature sensor 4 are respectively connected via data transmission... Cable 11 is connected to signal transmitter 10; one end of gas pipe 12 is sealed and inserted into mounting cover 1 and connected to mounting cover 1, and the other end of gas pipe 12 is sealed and exits buoy 9; a one-way valve 13 is installed inside gas pipe 12; a gas insoluble in water is injected into mounting cover 1 through gas pipe 12; grooves 14 are provided at the adsorption ends of magnetic chuck 7 and float 18; limit switches 15 are respectively installed on the outer wall of float 18; the limit switch 15 includes push rod 16; the grooves 14 and limit switches 15 are correspondingly matched; a protective pad 17 is fixedly attached to the outer wall of magnetic chuck 7; the protective pad 17 and magnetic chuck 7 are correspondingly matched in shape; the gas insoluble in water is methane; the outer surface of mounting cover 1 is coated with Teflon coating.

[0023] When using equipment to perform sag detection on the buoy 18 of the offshore platform, the battery pack 5 supplies power to the pressure sensor 3 and temperature sensor 4, and tests their operation as well as the signal transmitter 10 inside the buoy 9. After confirming that they are working properly, the probe is used to pressurize the buckle 2 set on the outer wall of the mounting cover 1. Then, the mounting cover 1 is placed in the water and allowed to descend along the water surface using the hoisting rope 8. After the mounting cover 1 begins to descend, the probe is activated to monitor the descent process of the mounting cover 1, so as to facilitate tracking during the descent and to facilitate adjusting the descent position of the mounting cover 1. The mounting cover 1 is then sent to the appropriate detection position on the buoy 18. When the mounting cover 1 is descending, it is connected to the marine environment through the transition net 6. The transition net 6 prevents marine life from entering the mounting cover 1, thereby avoiding interference with the use of the pressure sensor 3 and temperature sensor 4, making the use safer and more reliable.

[0024] As the mounting cover 1 descends to the installation position on the float 18, the groove 14 at the bottom of the magnetic chuck 7 aligns with the limit switch 15 installed on the outer wall of the float 18. As the mounting cover 1 descends, the magnetic chuck 7 adheres to the float 18, pressing the push rod 16 of the limit switch 15. The limit switch 15 then transmits a feedback signal to confirm that the mounting cover 1 is properly installed. After the mounting cover 1 detaches from the installation position on the float 18, it disengages from the limit switch 15. When the push rod 16 contacts, the limit switch 15 sends a signal feedback transmission again to monitor the mounting cover 1 so that it can be detected in time if it is removed from the mounting position, making it more reliable. When the magnetic chuck 7 is attached to the float 18, the protective pad 17 increases the contact friction with the float 18, making the installation more secure and reliable. Then, through the above operations, multiple mounting covers 1 are arranged along the float 18. The denser the arrangement of the mounting covers 1, the more accurate the data collected will be for detecting the sagging of the float 18.

[0025] After each mounting cover 1 is positioned along the buoy 18, the buoy 9 floats on the sponge and the mounting cover 1 is pulled by the suspension rope 8 to prevent it from drifting aimlessly. Then, insoluble gases, such as methane gas, are injected into the mounting cover 1 through the gas pipe 12 that passes through the buoy 9. As the methane gas is injected, the seawater inside the mounting cover 1 is discharged out through the transition net 6. After the seawater is completely discharged, a stable environment is formed inside the mounting cover 1, and the air pressure inside the mounting cover 1 is consistent with the seawater pressure. At this time, the air pressure sensor 3 and temperature sensor 4 inside the mounting cover 1 transmit the data to the signal transmitter 10 inside the buoy 9 through the data transmission cable 11, and transmit each pair of data to the terminal through the signal transmitter 10 so that the testing personnel can receive the data.

[0026] After a stable environment is formed inside the mounting cover 1, the pressure inside is consistent with the pressure in the seawater. However, the pressure is different at different depths underwater. Therefore, after transmitting the data, the air pressure sensor 3 determines whether the float 18 is cambering based on the transmitted air pressure data, and detects the degree of cambering of the float 18 based on the data. When transmitting the air pressure data inside the mounting cover 1, the temperature sensor 4 will transmit the temperature data inside the mounting cover 1 synchronously. Since temperature affects air pressure, the accurate air pressure data inside the mounting cover 1 can be easily obtained based on the temperature data inside the mounting cover 1, thereby making the cambering data of the float 18 more accurate.

[0027] When detecting the sag of the float 18 by inflating the mounting cover 1, interference from marine life with the pressure sensor 3 and temperature sensor 4 is avoided. The deployment and installation of the mounting cover 1 can be completed on the sea surface, making it convenient and easy to install. When the signal transmitter 10 transmits the data generated by the pressure sensor 3 and temperature sensor 4, the signal transmitter 10 also transmits its own information. Its own data will mark the position information of the mounting cover 1, making data reception more intuitive and sag detection smoother and more convenient, thus improving efficiency.

Claims

1. A sag detector for a pontoon of a floating offshore platform, comprising an offshore platform and a pontoon constituting the offshore platform, characterized in that: The system includes a mounting cover (1); a buckle (2) is fixedly connected to the outer wall of the mounting cover (1); a pressure sensor (3), a temperature sensor (4), and a battery pack (5) are installed on the inner wall of the mounting cover (1), and the battery pack (5) supplies power to the pressure sensor (3) and the temperature sensor (4) respectively; the mounting cover (1) includes an open bottom end and an opposite top end; a magnetic suction cup (7) is fixedly connected to the bottom end of the mounting cover (1) through a transition net (6), and the magnetic suction cup (7) is attracted to the float (18); a buoy (9) is fixedly connected to the top end of the mounting cover (1) through a suspension rope (8); a signal transmitter (10) is installed inside the buoy (9); a data transmission cable (11) and an air supply pipe (12) are laid inside the suspension rope (8); the pressure sensor (3) and the temperature sensor (4) are respectively connected through the data transmission cable (11). It is connected to the signal transmitter (10); the temperature sensor (4) is used to measure the temperature data inside the mounting cover and combine it with the air pressure data of the air pressure sensor to obtain the accurate air pressure data inside the mounting cover; one end of the gas supply pipe (12) is sealed and inserted into the mounting cover (1) and connected to the mounting cover (1), and the other end of the gas supply pipe (12) is sealed and inserted out of the buoy (9); a one-way valve (13) is installed inside the gas supply pipe (12); a gas that is insoluble in water is injected into the mounting cover (1) through the gas supply pipe (12).

2. A sag detector for a floating offshore platform pontoon (18) as claimed in claim 1, characterised in that The magnetic chuck (7) and the adsorption end of the float (18) are provided with grooves (14); limit switches (15) are respectively installed on the outer wall of the float (18); the limit switch (15) includes a push rod (16); the groove (14) and the limit switch (15) are correspondingly matched.

3. A sag detector for a floating offshore platform pontoon (18) according to claim 2, characterised in that A protective pad (17) is fixedly attached to the outer wall of the magnetic chuck (7); the protective pad (17) corresponds to the shape of the magnetic chuck (7).

4. A sag monitor for a floating offshore platform pontoon (18) as claimed in claim 1, characterised in that The gas that is insoluble in water is methane.

5. A sag monitor for a floating offshore platform pontoon (18) as claimed in claim 1, characterised in that The outer surface of the mounting cover (1) is coated with a Teflon coating.

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