A current profile observation raft, deployment method, and ship-mounted fixed-point observation system

Abstract

The present invention belongs to the technical field of ocean current observation, and discloses an ocean current profile observation raft, a deployment method, and a fixed-point observation system on board. A movable rope buckle is sleeved on a support rod, a support rod middle connecting buckle is arranged in the middle of the support rod, and a support rod top connecting buckle is arranged at the right end of the support rod; a steel cable is connected to a steel cable return rope, and the steel cable is connected to the movable rope buckle through a safety buckle; the steel cable is connected to a special raft; the special raft body is connected to a thin anchor chain and a thick nylon rope through a first stainless steel shackle, and the thin anchor chain and the thick rope are connected to the support rod middle connecting buckle and connected to the ship; the special raft body is connected to the thick anchor chain by connecting the first stainless steel shackle, and the thick anchor chain is connected to the protection frame connecting buckle on the ADCP protection frame through a fourth stainless steel shackle; an ADCP is fixed inside the ADCP protection frame through an ADCP clip and an ADCP binding rope. The present invention is safe and stable, quick to install, has good observation effect, and is suitable for ocean current observation of various ship types under severe sea conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of ocean current observation, and in particular relates to an ocean current profile observation raft, a deployment method, and a ship-mounted fixed-point observation system. Background Art

[0002] At present, the marine survey is to investigate the distribution and change patterns of hydrology, meteorology, physics, chemistry, biology, and bottom sediments in a specific sea area. The survey and observation methods include large-scale survey, cross-section survey, continuous observation and auxiliary observation. The methods used include aerial observation, satellite observation, ship observation, underwater observation, automatic observation of fixed buoys, automatic observation of floating stations, etc. Marine surveys are of great significance for understanding the distribution of aquatic resources and fishery production. The current profile observation raft is also a mechanical equipment that is frequently used in marine surveys. It is mainly used for onboard observation, especially offshore surveys. At present, there is a lack of professional observation equipment that can be used for onboard observation in offshore surveys.

[0003] Through the above analysis, the problems existing in the prior art are:

[0004] (1) Shipborne observation rafts are mainly used in offshore surveys. As a useful and supplementary method / equipment for current observation, their application in the open sea is relatively rare.

[0005] (2) The existing observation rafts are not strong enough to transmit data in real time under poor sea conditions, and the data observation stability is not enough. The difficulty of solving the above problems is: under poor sea conditions, the strength of the observation raft itself and the strength of its connection with the ship and instruments are issues that must be considered. At the same time, how to ensure that the observed ocean current data can be transmitted back to the ship in real time when the raft is observing normally is also an issue that needs to be considered.

[0006] The significance of solving the above problems is that due to the lack of professional equipment, the observation raft, as a beneficial observation method, is not used very often in the open sea. Solving the above problems can effectively increase the scope, frequency and effect of the observation raft. Summary of the invention

[0007] In order to solve the problems existing in the prior art, the present invention provides a current profile observation raft, a deployment method, and a ship-mounted fixed-point observation system. The present invention is safe and stable, quick to install, has good observation effect, and is suitable for current observation in severe sea conditions and on various ship types.

[0008] The present invention is achieved by providing a current profile observation raft, wherein the current profile observation raft is provided with a support rod;

[0009] A movable rope buckle is sleeved on the support rod, a support rod middle connecting buckle is arranged in the middle of the support rod, and a support rod top connecting buckle is arranged at the right end of the support rod;

[0010] The movable rope buckle is connected to the steel cable through the steel cable safety buckle, and the steel cable is connected to the steel cable return rope;

[0011] The steel wire cable is connected to the special raft, and the special raft is provided with a special raft body; the special raft body is connected to the thick anchor chain through a first stainless steel shackle, and the thick anchor chain is connected to the protection frame connecting buckle on the ADCP protection frame through a fourth stainless steel shackle;

[0012] The ADCP is fixed inside the ADCP protection frame through an ADCP clip and an ADCP binding rope. The ADCP binding rope is connected to a thick nylon rope, and the ADCP is connected to an ADCP data transmission cable.

[0013] Furthermore, the support rods are connected by flanges, and U-bolts are fixed on the support rods. The support rods are connected to the fixed anchor chain by shackles at the rear ends of the support rods.

[0014] Furthermore, the dedicated raft body is connected to a bow safety rope and a stern safety rope.

[0015] Furthermore, the special raft body is connected to an outer safety rope, the outer safety rope is connected to a connecting buckle at the top of the support pole through an outer safety rope safety buckle, and the outer safety rope is connected to a protective rope at the top of the support pole.

[0016] Furthermore, the special raft body is connected to the thin anchor chain through a second stainless steel shackle, and the thin anchor chain is connected to the thick anchor chain through a third stainless steel shackle.

[0017] Furthermore, the connecting buckle in the middle of the support pole is connected to the protection rope in the middle of the support pole, and the connecting buckle at the top end of the support pole is connected to the protection rope at the top end of the support pole.

[0018] Furthermore, a dedicated raft buoyancy part is fixed to the upper end of the dedicated raft body through a dedicated raft connecting buckle;

[0019] The buoyancy part of the special raft is foam wrapped by two net bags and fixed to the raft by ropes. Each foam is 100cm long and 40cm in diameter.

[0020] Furthermore, the support rod consists of two parts.

[0021] The first part of the support rod is 3 meters long and 7.5 cm in diameter; the second part is 4.5 meters long in total, welded from three sections, and distributed in a stepped manner: the first section is 1 meter long and 7.5 cm in diameter; the second section is 2 meters long and 6 cm in diameter; the third section is 1.5 meters long and 4 cm in diameter;

[0022] Furthermore, the four side steel pipes and four corners of the special raft are wrapped with plastic pipes and wrapped with waterproof tapes.

[0023] Furthermore, the four corners of the top and the lower ring of the ADCP protection frame are wrapped with plastic tubes and wrapped with waterproof tape.

[0024] Another object of the present invention is to provide a method for deploying the current profile observation raft, the method comprising:

[0025] (1) At the observation site, place the ADCP raft on the side of the ship where the crane is located;

[0026] (2) Before the equipment is deployed, assemble the flow profile observation device in advance. This includes the following: fix the ADCP to the ADCP protection frame with a clip and a rope; connect the ADCP protection frame to the special raft; connect the bow safety rope, stern safety rope, wire rope, outer safety rope, thick nylon rope thin anchor chain, thick anchor chain, and ADCP data transmission cable of the special raft; connect the two parts of the support pole with a flange, tie the middle protection rope of the support pole, and the top protection rope of the support pole, and weld the U-bolt to the ship; connect the ADCP data transmission cable to the ADCP and the computer respectively, and debug successfully;

[0027] During the equipment deployment process, the crane is operated, and the bow safety rope, stern safety rope, outer safety rope, thick nylon rope, thin anchor chain, ADCP data transmission cable and support rods are connected on both sides of the raft;

[0028] Before laying out the equipment, prepare the rolling belt, scissors, and wrench, and open the small door on the side of the ship;

[0029] Connect and prepare the whole set of equipment, and straighten the rope bundles neatly;

[0030] The crew on board operated the crane, hung the wire rope on the hook, lifted the equipment, and tightened the bow and stern safety ropes on both sides of the raft; the equipment was lifted over the safety wall on one side of the ship and stopped outside the ship;

[0031] At this time, connect the outer safety rope safety buckle with the connecting buckle at the top of the support pole to check whether the equipment status and rope bundle placement are correct; after the connection is completed, move the support pole outboard;

[0032] Move it to the middle connecting buckle of the support pole, and then connect the stainless steel shackles on the thin anchor chain and the thick nylon rope with the connecting buckle in the middle of the support pole. After the connection is completed, continue to move the support pole outboard. After the support pole is sent out about 3.5 meters from the ship's side, use iron plates and nuts to fix the support pole on the U-bolts;

[0033] While the support pole is fixed, tighten the bow safety rope and stern safety rope on both sides and tie them to the side of the ship;

[0034] After the support pole, bow safety rope and stern safety rope are fixed, the crane will completely lower the equipment into the sea. The wire rope is no longer under stress. At this time, the wire rope is pulled back to the ship's side with the return rope and removed from the crane. The safety buckle at the top of the wire rope is buckled to the active rope buckle of the support pole, and the return rope is rooted on the ship.

[0035] Install the fixed anchor chain at the end of the pole, the thin anchor chain, the thick nylon rope, the protection rope in the middle of the pole, the protection rope at the top of the pole, and the outer safety rope on the boat one by one;

[0036] (4) Equipment recycling process

[0037] Before retrieving the equipment, prepare the rolling strip, scissors and wrench, and open the small door on the side of the ship;

[0038] Use the return rope to pull the wire rope back to the ship's side and hang it on the crane, lift the equipment and let the crane bear the force;

[0039] First, loosen the connection between the fixed anchor chain at the tail of the pole, the thin anchor chain, the thick nylon rope, the protection rope in the middle of the pole, the protection rope at the top of the pole, and the outer safety rope and the boat. ;

[0040] Use a wrench to remove the iron plate and nut of the U-bolt that fixes the support rod; after loosening, pull the support rod back to the middle connecting buckle, and then disassemble the stainless steel shackles on the thin anchor chain and thick nylon rope from the middle connecting buckle of the support rod;

[0041] Pull back to the connecting buckle at the head of the support pole, and disassemble the outer safety rope safety buckle from the connecting buckle at the top of the support pole;

[0042] After the disassembly is completed, the bow safety ropes and stern safety ropes on both sides are untied from the ship's side. After the outer safety rope 20, thick nylon rope, thin anchor chain, and ADCP data transmission cable are untied, the crane is used to lift the equipment over the safety wall on one side of the ship's side and stop it on the ship's deck;

[0043] After the equipment is securely placed on the deck, remove the wire rope from the crane;

[0044] At this point the recycling is complete.

[0045] Another object of the present invention is to provide a shipboard fixed-point observation system, which uses the current profile observation raft.

[0046] Combining all the above technical solutions, the advantages and positive effects of the present invention are as follows: In the present invention, the support rods are connected by flanges, and U-bolts are fixed on the support rods. The support rods are connected to the fixed anchor chain through the shackles at the tail ends of the support rods. Two U-bolts with an inner diameter of 7.5m are welded below the contact between the ship and the first part of the support rod. After the equipment is deployed, the support rod is fixed to the ship using iron plates and nuts; a U-ring is welded at the tail of the support rod for installing the shackle and connecting the two anchor chains to fix the support rod. In the present invention, the special raft body is connected to the bow safety rope and the stern safety rope to constrain the freedom of the equipment in the bow and stern directions and ensure the safety of the equipment and instruments.

[0047] The special raft body of the present invention is connected to the outer safety rope, which is connected to the connecting buckle at the top of the support pole through the outer safety rope safety buckle, and the outer safety rope is connected to the protective rope at the top of the support pole to prevent the equipment from colliding with the hull due to waves and ensure the safety of equipment and instruments. The special raft body of the present invention is connected to the thin anchor chain through the second stainless steel shackle, and the thin anchor chain is connected to the thick anchor chain through the third stainless steel shackle. When deployed, it is connected to the middle connecting buckle of the support pole 3.4 meters above the raft. The other end is rooted on the ship.

[0048] In the present invention, the middle connecting buckle of the support pole is connected to the middle protection rope of the support pole, and the top connecting buckle of the support pole is connected to the top protection rope of the support pole, and they are respectively tied with ropes and connected to the ship to resist the bending moment of a part of the equipment on the support pole. In the present invention, the upper end of the special raft body is fixed with a special raft buoyancy part through a special raft connecting buckle to provide corresponding buoyancy. In the present invention, the support pole is composed of two parts, which is convenient for assembly and disassembly.

[0049] The four steel pipes and four corners of the special raft of the present invention are wrapped with plastic pipes and wrapped with waterproof tape to prevent the protruding part of the raft from colliding with the hull to cause paint peeling, and at the same time, it plays a role in preventing the raft from hitting instruments and personnel, and protecting the safety of instruments and personnel. The four corners of the top and the lower ring of the ADCP protection frame are wrapped with plastic pipes and wrapped with waterproof tape to prevent the protruding part of the frame from colliding with the hull to cause paint peeling, and at the same time, it plays a role in preventing the frame from hitting instruments and personnel, and protecting the safety of instruments and personnel.

[0050] The invention is safe and stable, quick to install, good in observation effect, and suitable for current observation of various types of ships in severe sea conditions. At the same time, the thick / thin anchor chain and thick nylon rope in the invention adopt a soft and hard connection method to connect the special raft with ADCP, ADCP protection frame, special raft, support pole and ship to ensure the absolute safety of equipment and instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0052] Figure 1 It is a schematic diagram of the structure of a current profile observation raft provided by an embodiment of the present invention.

[0053] Figure 2 It is a schematic diagram of the support rod structure provided by an embodiment of the present invention.

[0054] Figure 3 It is a schematic diagram of the raft structure provided by an embodiment of the present invention.

[0055] Figure 4 It is an assembly diagram of the ADCP and ADCP protection frame provided by an embodiment of the present invention.

[0056] Figure 5 It is a schematic diagram of the raft and ADCP structure provided by an embodiment of the present invention.

[0057] Figure 6 It is an overall diagram of the onboard observation diagram provided by an embodiment of the present invention.

[0058] In the figure: 1. Support pole; 2. Flange; 3. Connecting buckle in the middle of the support pole; 4. Connecting buckle at the top of the support pole; 5. Active rope buckle; 6. U-bolt; 7. Shackle at the end of the support pole; 8. Fixed anchor chain; 9. Protective rope in the middle of the support pole; 10. Protective rope at the top of the support pole; 11. Special raft; 12. Connecting buckle of special raft; 13. Special raft body; 14. Buoyancy part of special raft; 15. Bow safety rope; 16. Stern safety rope; 17. Wire rope; 18. Wire rope safety buckle; 1 9. Wire rope return rope; 20. Outer safety rope; 21. Outer safety rope safety buckle; 22. Thick nylon rope; 23. Thin anchor chain; 24. First stainless steel shackle; 25. Second stainless steel shackle; 26. Third stainless steel shackle; 27. Fourth stainless steel shackle; 28. Thick anchor chain; 29. ​​ADCP data transmission cable; 30. ADCP protection frame; 31. Protection frame connecting buckle; 32. ADCP; 33. ADCP clip; 34. ADCP binding rope. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with implementation cases. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] In view of the problems existing in the prior art, the present invention provides a current profile observation raft, a deployment method, and a ship-mounted fixed-point observation system. The present invention is described in detail below in conjunction with the accompanying drawings.

[0061] like Figure 1-Figure 6 As shown, in the current profile observation raft improved by the embodiment of the present invention, the fixed anchor chain 8 is connected to the support rod 1 through the support rod tail end buckle 7, the support rods 1 are connected by the flange 2, and the U-bolt 6 is fixed on the support rod 1; a movable rope buckle 5 is sleeved on the support rod 1, and a support rod middle connecting buckle 3 is provided in the middle of the support rod 1, and the support rod middle connecting buckle 3 is connected to the support rod middle protection rope 9; a support rod top connecting buckle 4 is provided at the right end of the support rod 1, and the support rod top connecting buckle 4 is connected to the support rod top protection rope 10; the movable rope buckle 5 is connected to the steel wire cable 17 through the steel wire cable safety buckle 18, the steel wire cable 17 is connected to the steel wire cable return rope 19, and the steel wire cable 17 is connected to the special raft 11, and the special raft 11 is provided with a special raft body 13; the special raft body 13 is connected to the bow safety rope 15 and the stern safety rope 16.

[0062] A special raft buoyancy part 14 is fixed to the upper end of the special raft body 13 through a special raft connecting buckle 12. The special raft body 13 is connected to an outer safety rope 20. The outer safety rope 20 is connected to the connecting buckle 4 at the top of the support pole through an outer safety rope safety buckle 21; the outer safety rope 20 is connected to the protective rope 10 at the top of the support pole.

[0063] The dedicated raft body 13 is connected to the thick anchor chain 28 through the first stainless steel shackle 24, and the thick anchor chain 28 is connected to the protection frame connecting buckle 31 on the ADCP protection frame 30 through the fourth stainless steel shackle 27. The ADCP 32 is fixed inside the ADCP protection frame 30 through the ADCP clip 33 and the ADCP binding rope 34, and the ADCP binding rope 34 is connected to the thick nylon rope 22. ADCP 32 is connected to the ADCP data transmission cable 19, and the dedicated raft body 13 is connected to the thin anchor chain 13 through the second stainless steel shackle 25, and the thin anchor chain 13 is connected to the thick anchor chain 28 through the third stainless steel shackle 26.

[0064] The technical solution of the present invention is further described below in conjunction with specific implementation cases.

[0065] The technical solution adopted by the present invention includes: a support pole, a special raft, an ADCP protection frame, a data cable, and a protection rope. Figure 6The main body diagram is shown in Figure 1. The support rod is made of galvanized iron pipe. The support rod is assembled from two parts, which are connected by flanges. The first part of the support rod is 3m long and 7.5cm in diameter; the second part is 4.5m long in total, divided into three sections according to the diameter, welded and distributed in a stepped manner: the first section is 1m long and 7.5cm in diameter, the second section is 2m long and 6cm in diameter, and the third section is 1.5m long and 4cm in diameter. The second part has two welded connection buckles with an inner diameter of 10cm: one at 3m and one at the top. There is a movable rope buckle on the outside of the flange, which is used to hang the wire rope here.

[0066] The support pole is used to mount the raft, and there are 6 places to fix it to the ship: 1. Two U-shaped bolts with an inner diameter of 7.5m are welded below the contact between the ship and the first part of the support pole. After the equipment is deployed, the support pole is fixed to the ship with iron plates and nuts; 2. A U-shaped ring is welded at the tail of the support pole for installing a shackle and connecting two anchor chains to fix the support pole; 3. Ropes are tied to the two connecting buckles on the second part of the support pole to connect to the ship to resist the bending moment of part of the equipment on the support pole.

[0067] The main material of the special raft is 316L stainless steel, with a size of 140cm×85cm. Two connecting buckles are welded in the middle of the special raft, with an inner diameter of 10cm. The buoyancy part of the raft is foam wrapped by two net bags, fixed to the raft by ropes, and each foam is 100cm long and 40cm in diameter. The steel pipes on the four sides and the four corners of the special raft are wrapped with plastic tubes and wrapped with waterproof tape to prevent the protruding parts of the raft from colliding with the hull and causing the paint to fall off. At the same time, it plays a role in preventing the raft from bumping against instruments and personnel, and protecting the safety of instruments and personnel.

[0068] The dedicated raft has a total of 8 cables ( / anchor chains) connected to the ADCP rack, ADCP, and ship to ensure data transmission and equipment safety:

[0069] 1. Bow safety rope. The bow safety rope is a 15-meter-long thick nylon rope, one end of which is connected to the inner corner of the raft near the bow, and the other end is rooted on the boat. It is used to restrict the freedom of the equipment in the bow and stern direction of the boat and ensure the safety of the equipment and instruments;

[0070] 2. Stern safety rope. The stern safety rope is a 15-meter-long thick nylon rope, one end of which is connected to the inner corner of the raft near the stern, and the other end is rooted in the boat. It is used to restrict the freedom of the equipment in the bow and stern directions of the boat and ensure the safety of the equipment and instruments;

[0071] 3. Wire rope. The wire rope is used as a lifting rope for the deployment and recovery of the entire set of equipment. The wire rope has buckles at both ends and is 3.9 meters long. One end is connected to the shackle in the middle of the raft, and the other end has a safety buckle and a 5-meter return rope. When deploying and recovering equipment, the wire rope can be pulled up through the return rope to facilitate unhooking from the crane.

[0072] 4. Outer safety rope. The outer safety rope is a 15-meter-long Kevlar rope, one end of which is connected to the middle of the outer crossbar of the raft. A knot is tied 3.2 meters away from this end, and a safety buckle is hung. When laying, the safety buckle is connected to the front end buckle of the support pole. It is used to prevent equipment from colliding with the hull due to waves and ensure the safety of equipment and instruments.

[0073] 5. Thick nylon rope. The length of the thick nylon rope is 30 meters. The thick nylon rope is knotted and passed through the middle connecting buckle of the raft, then knotted again at the connecting buckle of the ADCP protection frame, and finally connected to the ADCP binding rope. Tie a knot 3.4 meters above the raft and connect it to the connecting buckle in the middle of the support pole when laying it. The other end of the thick nylon rope is rooted on the boat. The thick nylon rope is a safety rope that runs through the entire set of equipment (starting from the ADCP, passing through the ADCP protection frame, the raft, the connecting buckle in the middle of the support pole, and directly connected to the fixed point of the ship), ensuring the safety of the equipment and instruments.

[0074] 6. Thin anchor chain (φ6mm). The thin anchor chain is 30 meters long. One end is connected to the connecting buckle in the middle of the raft with a stainless steel shackle. A 0.2-meter margin is left under the raft to connect to the thick anchor chain with a stainless steel shackle. When deployed, it is connected to the connecting buckle in the middle of the support pole 3.4 meters above the raft. The other end is rooted on the boat.

[0075] 7. Thick anchor chain (φ10mm). The thick anchor chain is about 0.7 meters long, with Kevlar rope inserted in the middle. One end is connected to the raft's connection buckle through a shackle, and the other end is connected to the connection buckle of the ADCP protection frame through a shackle.

[0076] 8. ADCP data transmission cable. Wrap the ADCP transmission cable 9 meters above the top with a rubber tube, tie it tightly with a rolling belt, and wrap it with electrical tape. Please make sure that the ADCP transmission cable is straightened and not knotted or bent to ensure the stability of data transmission. When wiring on a ship, try to avoid crowded passages. Stairs and pipes are the preferred layout paths. Wrap the fixed place with a rubber tube and tie it tightly with a rolling belt to prevent cable wear;

[0077] Thick / thin anchor chains and thick nylon ropes are connected by soft and hard connection to connect the special raft with ADCP, ADCP protection frame, special raft, support pole and ship to ensure the absolute safety of equipment and instruments.

[0078] To ensure that the data cable is not too scattered, the thick nylon rope, anchor chain and transmission cable are bundled into a bundle with a rolled belt. The thick nylon rope and ADCP data transmission cable are appropriately relaxed when tied to leave a movable margin so that the thin anchor chain is stressed first to protect the transmission cable from wear.

[0079] The material of the ADCP protection frame is 316L stainless steel. The total height of the ADCP protection frame is 125cm, and the maximum diameter is 76cm. The top of the ADCP protection frame is a connecting buckle, the total length of the connecting buckle base is 28cm, the thickness is 3cm, and the inner circle radius is 3cm; the middle of the ADCP protection frame is a 90cm×34cm cube, which is used to protect the ADCP cabin; there are two clips in the middle of the ADCP protection frame to fix the ADCP. The width of the ADCP clip is 5cm, the thickness is 6mm, and the inner circle radius is 9cm. There are two screw holes with an inner diameter of 1.4cm at one end of each clip, and the two screw holes are 4cm apart. The interval between the two ADCP clips is 40cm; the lower end of the ADCP protection frame is a conical frame, 26cm high, with a maximum diameter of 76cm and a minimum diameter of 48cm, which is used to protect the ADCP transducer. There are 3 cables connected to the ADCP protection frame: 1. Thick nylon rope. To prevent the instrument from slipping, ADCP is tied with Kevlar ropes in multiple places starting from the bottom: multiple laps on the cabin and cross-wrapped at the ADCP transducer. The thick nylon rope is knotted at the ADCP protection frame connection buckle and connected to the ropes tied to the ADCP cabin. 2. The thick anchor chain is connected with a stainless steel shackle at the connection buckle; 3. The ADCP data transmission cable is connected to the ADCP tail connector. The top four corners and the lower ring of the ADCP protection frame are wrapped with plastic tubes and wrapped with waterproof tape to prevent the protruding parts of the frame from colliding with the hull and causing the paint to fall off. At the same time, it plays a role in preventing the frame from hitting the instrument and personnel, and protecting the safety of the instrument and personnel.

[0080] The working principle of the present invention is as follows: The deployment and recovery process of the observation raft is as follows:

[0081] 1. Placement location

[0082] At the observation site, the ADCP raft needs to be placed on the side of the ship where the ship's crane is located.

[0083] 2. Equipment assembly / preliminary preparation

[0084] Before the equipment is deployed, the flow profile observation device needs to be assembled in advance. In general, the main work includes the following: 1. Fix ADCP32 to ADCP protection frame 30 with clips 33 and ropes; 2. Connect ADCP protection frame 30 to special raft 11; 3. Connect the cables of special raft 11 (bow safety rope 15, stern safety rope 16, wire rope 17, outer safety rope 20, thick nylon rope 22, thin anchor chain 23, thick anchor chain 28, ADCP data transmission cable 29); 4. Connect the two parts of the support rod 1 with flange 2, tie the protection rope (protection rope 9 in the middle of the support rod, protection rope 10 at the top of the support rod), and weld U-bolt 6 to the ship; 5. Connect ADCP data transmission cable 29 to ADCP33 and computer respectively, and debug successfully.

[0085] 3. Equipment deployment process

[0086] A total of 5 to 6 people are required for equipment deployment, including 1 person to operate the crane, 2 (A and B) people responsible for the safety ropes on both sides of the raft 11 (bow safety rope 15, stern safety rope 16), and 2 to 3 (C, D, and E) people responsible for connecting the rope bundle (outer safety rope 20, thick nylon rope 22, thin anchor chain 23, ADCP data transmission cable 29) with the support pole 1.

[0087] Before deploying the equipment, prepare the necessary tools (rolling belt, scissors, wrench), open the small door on the side of the ship, wear work clothes, safety helmet, and labor protection shoes, and pay attention to personal safety.

[0088] Prepare and connect the entire set of equipment, and straighten out the rope bundles to prevent them from getting tangled during lifting.

[0089] The crew on board controlled the crane, and the steel cable 17 was hung on the hook to lift the equipment. At this time, (A and B) tightened the safety ropes on both sides of the raft (the bow safety rope 15 and the stern safety rope 16) to prevent the equipment from swinging in the air. The equipment was lifted over the safety wall on one side of the ship and stopped outside the ship.

[0090] At this time, (C) connects the outer safety rope safety buckle 21 with the pole top connection buckle 4, and (D) pays attention to whether the equipment status and rope bundle placement are correct. After the connection is completed, (E) is responsible for assisting (C) to carry the pole 1 outboard.

[0091] After transporting it to the middle connecting buckle 3 of the support pole, (C) then connects the stainless steel shackle 24 on the thin anchor chain 23 and the thick nylon rope 22 with the connecting buckle 3 in the middle of the support pole. After the connection is completed, (E) is responsible for assisting (C) to continue transporting the support pole 1 to the outside of the ship. After the support pole 1 is sent out of the ship's side for about 3.5 meters, (E and C) use iron plates and nuts to fix the support pole 1 on the U-bolt 6.

[0092] While the support rod 1 is fixed, (A and B) tighten the safety ropes on both sides (the bow safety rope 15 and the stern safety rope 16) and tie them to the side of the ship.

[0093] After the support pole 1 and the safety ropes (the bow safety rope 15 and the stern safety rope 16) are fixed, the crane completely lowers the equipment into the sea, and the wire rope 17 is no longer under stress. At this time, the wire rope 11 is pulled back to the ship's side with the return rope 19 and removed from the crane. The safety buckle 18 at the top of the wire rope 11 is buckled onto the movable rope buckle 5 of the support pole 1, and the return rope 19 is rooted on the ship.

[0094] The fixed anchor chain 8 at the tail of the support pole, the thin anchor chain 23, the thick nylon rope 22, the support pole protection rope (the support pole middle protection rope 9, the support pole top protection rope 10), and the outer safety rope 20 are one by one on the ship.

[0095] At this point the deployment work has been completed, inspect the equipment again and make corresponding improvements.

[0096] 4. Equipment recycling process

[0097] A total of 5 to 6 people are required for equipment recovery, including 1 person to operate the crane, 2 (A and B) people responsible for the safety ropes on both sides of the raft (bow safety rope 15, stern safety rope 16), and 2 to 3 (C, D, and E) people responsible for the dismantling of the rope bundle (outer safety rope 20, thick nylon rope 22, thin anchor chain 23, ADCP data transmission cable 29) and the support pole 1.

[0098] Before recovering the equipment, prepare the necessary tools (rolling strips, scissors, wrenches), open the small door on the side of the ship, wear work clothes, safety helmets, and labor protection shoes, and pay attention to personal safety.

[0099] The wire rope 17 is pulled back to the ship's side with a return rope 19 and hung on the crane, the equipment is hoisted, and the crane is subjected to force.

[0100] First, loosen the connection between the fixed anchor chain 8, the thin anchor chain 23, the thick nylon rope 22, the support pole protection rope (the support pole middle protection rope 9, the support pole top protection rope 10), and the outer safety rope 20 and the vessel at the tail of the support pole.

[0101] (E-C) Use a wrench to remove the iron plate and nut of the U-bolt 6 that fixes the support rod 1. After loosening, (E-C) pull the support rod 1 back to the middle connecting buckle 3, and then disassemble the stainless steel shackle 24 on the thin anchor chain 23 and the thick nylon rope 22 from the middle connecting buckle 24 of the support rod.

[0102] Pull back to the connecting buckle 4 at the head of the support pole, (C) disassemble the outer safety rope safety buckle 21 and the connecting buckle 4 at the top of the support pole.

[0103] After the dismantling is completed, (A) and (B) can untie the safety ropes on both sides (bow safety rope 15, stern safety rope 16) from the ship's side. After all the rope bundles (outer safety rope 20, thick nylon rope 22, thin anchor chain 23, ADCP data transmission cable 29) are untied, the crane is used to lift the equipment over the safety wall on one side of the ship's side and stop it on the ship's deck.

[0104] The equipment is placed securely on the deck and the wire rope 17 is removed from the crane.

[0105] Check the whole set of equipment for damage and bumps, and make corresponding improvements according to the situation. Straighten each rope bundle and place the equipment properly.

[0106] At this point the recycling is complete.

[0107] From May to September 2020, in the northern waters of the South my country Sea, this current profile observation raft was deployed on a tugboat (deployment method as follows Figure 6), and carried out onboard monitoring of internal waves and currents for 108 days. During this period, it experienced severe sea conditions such as typhoons many times, and the use effect was good.

[0108] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0109] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A current profile observation raft, characterized in that: The ocean current profile observation raft is provided with: Support pole; A movable rope buckle is sleeved on the support rod, a support rod middle connecting buckle is arranged in the middle of the support rod, and a support rod top connecting buckle is arranged at the right end of the support rod; The movable rope buckle is connected to the steel cable through the steel cable safety buckle, and the steel cable is connected to the steel cable return rope; The steel wire cable is connected to the special raft, and the special raft is provided with a special raft body; the special raft body is connected to the thick anchor chain through a first stainless steel shackle, and the thick anchor chain is connected to the protection frame connecting buckle on the ADCP protection frame through a fourth stainless steel shackle; The ADCP is fixed inside the ADCP protection frame by an ADCP clip and an ADCP binding rope, the ADCP binding rope is connected to a thick nylon rope, and the ADCP is connected to an ADCP data transmission cable; The thick nylon rope is a safety rope that runs through the entire set of equipment. It starts from the ADCP, passes through the ADCP protection frame, the special raft, the middle connecting buckle of the support pole, and is directly connected to the fixed point of the boat; The support rods are connected by flanges, and the support rods are connected to the fixed anchor chain by shackles at the rear ends of the support rods; The dedicated raft body is connected with a bow safety rope and a stern safety rope; The special raft body is connected to the outer safety rope, the outer safety rope is connected to the connecting buckle at the top of the support pole through the outer safety rope safety buckle, and the outer safety rope is connected to the protective rope at the top of the support pole; The connecting buckle in the middle of the support pole is connected to the protection rope in the middle of the support pole, and the connecting buckle at the top of the support pole is connected to the protection rope at the top of the support pole; The fixed anchor chain at the tail of the support pole, the thick nylon rope, the protective rope in the middle of the support pole, the protective rope at the top of the support pole and the outer safety rope are laid one by one on the boat.

2. The ocean current profile observation raft according to claim 1, characterized in that: The special raft body is connected to the thin anchor chain through the second stainless steel shackle, and the thin anchor chain is connected to the thick anchor chain through the third stainless steel shackle.

3. The ocean current profile observation raft according to claim 2, characterized in that: The upper end of the special raft body is fixed with a special raft buoyancy part via a special raft connecting buckle; The buoyancy part of the special raft is foam wrapped by two net bags and fixed to the special raft by ropes. The length of each foam is 100 cm and the diameter is 40 cm.

4. The ocean current profile observation raft according to claim 3, characterized in that: The support rod is composed of two parts; The first part of the support rod is 3 meters long and 7.5 cm in diameter; the second part is 4.5 meters long in total, welded from three sections, and distributed in a stepped manner: the first section is 1 meter long and 7.5 cm in diameter; the second section is 2 meters long and 6 cm in diameter; the third section is 1.5 meters long and 4 cm in diameter; The four sides and four corners of the special raft are wrapped with plastic tubes and wrapped with waterproof tape; The four corners at the top and the lower ring of the ADCP protection frame are wrapped with plastic tubes and wrapped with waterproof tape.

5. A method for deploying a current profile observation raft as claimed in claim 4, characterized in that: The deployment method comprises: (1) At the observation site, place the ADCP raft on the side of the ship where the crane is located; (2) Before the equipment is deployed, assemble the current profile observation device in advance, including the following: fix the ADCP to the ADCP protection frame with the ADCP clip and ADCP binding rope; connect the ADCP protection frame to the special raft; connect the bow safety rope, stern safety rope, wire rope, outer safety rope, thick nylon rope, thick anchor chain, and ADCP data transmission cable of the special raft; connect the two parts of the support pole with a flange, tie the middle protection rope of the support pole and the top protection rope of the support pole, and weld the U-bolt to the ship; connect the ADCP data transmission cable to the ADCP and the computer respectively, and debug successfully; During the equipment deployment process, the crane is operated, and the bow safety rope, stern safety rope, outer safety rope, thick nylon rope, thin anchor chain, ADCP data transmission cable and support rods are connected on both sides of the special raft; Before laying out the equipment, prepare the rolling belt, scissors, and wrench, and open the small door on the side of the ship; Connect and prepare the whole set of equipment, and straighten the rope bundles neatly; The crew on board operated the crane, hung the wire rope on the hook, lifted the equipment, and tightened the bow safety rope and stern safety rope on both sides of the special raft; the equipment was lifted over the safety wall on one side of the ship and stopped outside the ship; At this time, connect the outer safety rope safety buckle with the connecting buckle at the top of the support pole to check whether the equipment status and rope bundle placement are correct; after the connection is completed, move the support pole outboard; Move it to the middle connecting buckle of the support pole, and then connect the stainless steel shackles on the thin anchor chain and the thick nylon rope with the connecting buckle in the middle of the support pole. After the connection is completed, continue to move the support pole outboard. After the support pole is sent out about 3.5 meters from the ship's side, use iron plates and nuts to fix the support pole on the U-bolts; While the support pole is fixed, tighten the bow safety rope and stern safety rope on both sides and tie them to the side of the ship; After the support pole, bow safety rope and stern safety rope are fixed, the crane will completely lower the equipment into the sea. The wire rope is no longer under stress. At this time, the wire rope return rope is used to pull the wire rope back to the ship's side and remove it from the crane. The safety buckle at the top of the wire rope is buckled to the active rope buckle of the support pole, and the wire rope return rope is rooted on the ship. Install the fixed anchor chain at the end of the pole, the thin anchor chain, the thick nylon rope, the protection rope in the middle of the pole, the protection rope at the top of the pole, and the outer safety rope on the boat one by one; (3) Equipment recycling process Before retrieving the equipment, prepare the rolling strip, scissors and wrench, and open the small door on the side of the ship; Use the wire rope return rope to pull the wire rope back to the ship's side and hang it on the crane, lift the equipment, and let the crane bear the force; First, loosen the connection between the fixed anchor chain, thin anchor chain, thick nylon rope, middle protection rope of the pole, top protection rope of the pole, and outer safety rope and the vessel; Use a wrench to remove the iron plate and nut of the U-bolt that fixes the support rod; after loosening, pull the support rod back to the middle connecting buckle, and then disassemble the stainless steel shackles on the thin anchor chain and thick nylon rope from the middle connecting buckle of the support rod; Pull back to the connecting buckle at the top of the support pole, and disassemble the outer safety rope safety buckle from the connecting buckle at the top of the support pole; After dismantling is completed, the bow safety ropes and stern safety ropes on both sides are untied from the ship's side. After the outer safety rope, thick nylon rope, thin anchor chain, and ADCP data transmission cable are untied, the crane is used to lift the equipment over the safety wall on one side of the ship's side and stop it on the ship's deck; After the equipment is securely placed on the deck, remove the wire rope from the crane; At this point the recycling is complete.

6. A ship-mounted fixed-point observation system, characterized in that: The ship-borne fixed-point observation system uses the current profile observation raft described in any one of claims 1 to 4.

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