A method of moving a water isolation sleeve

Abstract

The application discloses a moving method of a water isolation sleeve, and comprises the following steps: S1, moving a traction rope in a relaxed state at a water isolation sleeve port lifting lug to a target position by a distance; S2, sinking the water isolation sleeve to the traction rope being taut under the action of weight by pressurizing a working channel of the water isolation sleeve and a ballast tank; S3, after the traction rope is taut, discharging ballast water in the ballast tank of the water isolation sleeve to make the water isolation sleeve float to the traction rope being relaxed; and S4, repeatedly performing steps S1 to S3 in sequence for multiple times until the water isolation sleeve is at the target position. The water isolation sleeve is moved in water by using the floating state of the water isolation sleeve and the traction of the traction rope, and the water isolation sleeve is moved in water without the aid of an additional small boat, and the water isolation sleeve is moved in water without power and without the aid of additional complex equipment, so that the moving method is environment-friendly and simple in operation.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a method for moving a watertight sleeve. Background Technology

[0002] The 45,000 DWT semi-submersible barge's main hull employs a multi-section above-water assembly process. To address underwater structural welding and assembly operations, a watertight jacket was designed. This watertight jacket is a U-shaped open box structure, primarily composed of a U-shaped box and a sealing gasket. Its advantages include simple structure and the same operating space as traditional methods, allowing assembly, welding, flaw detection, cleaning, painting, and inspection to be completed within the watertight jacket. After the first weld is completed, the watertight jacket needs to be moved to the next closure joint. Due to the large size of the semi-submersible barge's main hull, the distance between two closure joints can reach 40 meters. Furthermore, the watertight jacket is large and heavy, and being submerged in water, moving it a considerable distance underwater is quite challenging. Summary of the Invention

[0003] The purpose of this invention is to provide a method for moving a water-proof sleeve, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] This invention provides a method for moving a water-proof sleeve, comprising:

[0006] S1: Move the slack traction rope at the end of the water-tight sleeve a certain distance toward the target position;

[0007] S2: By ballasting the working channel and ballast tank of the watertight sleeve, the watertight sleeve sinks under its own weight until the traction rope is taut.

[0008] S3: After the traction rope is taut, drain the ballast water from the ballast tank of the watertight sleeve so that the watertight sleeve floats up until the wire rope is slack.

[0009] S4: Repeat steps S1 to S3 in sequence multiple times until the water-tight sleeve is in the target position.

[0010] The beneficial effects of this invention are:

[0011] By utilizing the buoyancy of the water-tight sleeve and the traction of a tow rope, it can be moved in the water without the need for an additional small boat. This allows for long-distance, unpowered movement of the water-tight sleeve in the water, without the need for additional complex equipment. The movement method is environmentally friendly and easy to operate.

[0012] As a further improvement to the above technical solution, in step S1, the initial position of the water-proof sleeve is located at one of the water-sealed closure ports, and the target position of the water-proof sleeve is at the next closure port.

[0013] In the process of assembling large docks on water, a water-proof sleeve was designed to solve the problems of underwater structural welding and assembly. Therefore, by applying the method of this invention, the manufacturing cost of docks can be effectively reduced.

[0014] As a further improvement to the above technical solution, in step S3, the position where the watertight sleeve floats is the position where it abuts against the bottom plate of the ship. In the large dock water assembly process, the highest position where the watertight sleeve floats is the position where it abuts against the bottom plate of the ship. The greater the distance the watertight sleeve floats, the longer the traction rope moves to the target position. Since the longer the traction rope moves to the target position, the farther the watertight sleeve moves, maximizing the floating distance of the watertight sleeve during each traction movement helps to improve the moving efficiency of the watertight sleeve.

[0015] As a further improvement to the above technical solution, the traction rope is a steel wire rope. Steel wire ropes have high strength.

[0016] As a further improvement to the above technical solution, in step S1, the distance the traction rope moves is three to four meters. In actual operation, the rising and sinking time of the water-tight sleeve also needs to be considered. Taking all factors into account, moving the traction rope a distance of three to four meters is more efficient.

[0017] As a further improvement to the above technical solution, a moving rope is connected to the end of the traction rope, and in step S3, the moving rope and the traction rope are simultaneously taut. By adding a traction rope, the distance of the water-proof sleeve's upward and downward movement can be increased, the movement distance of the traction rope in step S1 can be increased, and the efficiency of the water-proof sleeve's movement can be improved. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a front view of the waterproof sleeve provided by the present invention;

[0020] Figure 2 This is a side view of the waterproof sleeve provided by the present invention;

[0021] Figure 3 This is a side view of the main hull of the semi-submersible barge provided by the present invention;

[0022] Figure 4 This invention provides a method for moving a water-proof sleeve, illustrated in the diagram where the water-proof sleeve sinks to the closing opening;

[0023] Figure 5This invention provides a method for moving a water-proof sleeve, as shown in the figure, where the water-proof sleeve is moved to the next closing opening. Detailed Implementation

[0024] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0025] In the description of this invention, terms such as "set up," "install," and "connect" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0026] The 45,000 DWT semi-submersible barge's main hull employs a multi-section, surface-mounted assembly process. To address underwater structural welding and assembly operations, a watertight jacket 100 was designed. The watertight jacket 100 is a U-shaped open box structure, primarily composed of a U-shaped box and a sealing gasket. Its advantages include simple structure and operating space similar to traditional methods, allowing assembly, welding, flaw detection, cleaning, painting, and inspection to be completed within the watertight jacket 100. After the first weld is completed, the watertight jacket 100 needs to be moved to the next closure joint. Due to the large size of the semi-submersible barge's main hull, the distance between two closure joints can reach 40 meters. Furthermore, the watertight jacket 100 is large and heavy, and being submerged in water, moving it a considerable distance underwater is quite challenging.

[0027] The following is an introduction to the waterproof sleeve 100.

[0028] Reference Figures 1 to 3 The watertight jacket 100 is a steel structure, and its basic components include a ballast tank 110, an empty tank, a regulating water tank, and an operating passage 120. The dimensions of the watertight jacket 100 are determined based on the ballast draft depth set for the surface structure and the height of the operating passage 120. The sealing of the watertight jacket 100 is divided into bottom sealing and end sealing. The bottom seal is installed on both sides of the top plate of the watertight jacket 100, with two seals, one inner and one outer. Sponge sealing strips are used, and the sealing strips seal the joint of the bottom plate under pressure. The end seal is the seal between the butt fittings and the hull side plates, located on the inner vertical surfaces at both ends of the watertight jacket 100, and is integrated with the bottom sealing strip.

[0029] The sealing between the water-tight sleeve 100 and the side of the ship is achieved through the side sealing structure. After the water-tight sleeve 100 is pressed against the bottom plate by drainage, the side sealing section is connected to the main body of the water-tight sleeve 100 through the connecting rod, and the leak is sealed to achieve the purpose of separating the side of the ship from the outside water.

[0030] Therefore, refer to Figures 4 to 5The present invention provides a method for moving a water-proof sleeve 100, and the following embodiments are provided:

[0031] The method for moving the waterproof sleeve 100 includes:

[0032] S1: Move the slack traction rope 200 at the lifting lug of the water-tight sleeve 100 a certain distance toward the target position;

[0033] S2: By ballasting into the working channel 120 and the ballast tank 110, the watertight sleeve 100 sinks under its own weight until the traction rope 200 is taut.

[0034] S3: After the traction rope 200 is taut, drain the ballast water from the ballast tank 110 so that the watertight sleeve 100 floats up until the wire rope is slack.

[0035] S4: Repeat steps S1 to S3 in sequence multiple times until the water-tight sleeve 100 is in the target position.

[0036] The water-tight sleeve 100 is moved in the water by using its floating state and the traction rope 200. It can be moved over long distances in the water without the need for an additional small boat. No additional complicated equipment is required, the movement method is environmentally friendly and the operation is simple.

[0037] In a further improvement, in step S1, the initial position of the water-proof sleeve 100 is located at one of the water-sealed closure ports, and the target position of the water-proof sleeve 100 is at the next closure port.

[0038] In the process of assembling large docks on water, a water-tight sleeve 100 is designed to solve the problems of underwater structural welding and assembly. Therefore, by applying the method of the present invention, the manufacturing cost of docks can be effectively reduced.

[0039] Further improvements are made in step S3, where the watertight sleeve 100 floats to the position where it abuts the bottom plate of the ship. In the large-scale dock assembly process, the highest position of the watertight sleeve 100 is where it abuts the bottom plate. The greater the upward distance of the watertight sleeve 100, the longer the traction rope 200 moves towards the target position. Since the longer the traction rope 200 moves towards the target position, the farther the watertight sleeve 100 moves, maximizing the upward distance of the watertight sleeve 100 during each traction movement helps improve the moving efficiency of the watertight sleeve 100.

[0040] As a further improvement, the traction rope 200 is a steel wire rope. Steel wire ropes have high strength.

[0041] Further improvements include moving the traction rope 200 a distance of three to four meters in step S1. In actual operation, the rising and sinking time of the water-tight sleeve 100 also needs to be considered. Taking all factors into account, moving the traction rope 200 a distance of three to four meters is more efficient.

[0042] A further improvement involves connecting a moving rope to the end of the traction rope 200, and in step S3, simultaneously tautning both the moving rope and the traction rope 200. By adding the traction rope 200, the upward and downward distances of the water-tight sleeve 100 can be increased, the moving distance of the traction rope 200 in step S1 can be increased, and the moving efficiency of the water-tight sleeve 100 can be improved.

[0043] The following is a specific embodiment for illustration. The main hull of the 45000DWT semi-submersible barge is divided into four sections, which need to be joined together. At the first underwater joining point, conventional means can be used to sink the watertight sleeve 100 to the first underwater joining point for construction. Of course, the watertight sleeve 100 can also be moved from other positions to the first underwater joining point using the watertight sleeve 100 moving method of the present invention.

[0044] After completing the construction of a water-sealed closure, proceed with step S1: move the slack traction rope 200 at the lifting lug of the water-sealing sleeve 100 to the target location by three to four meters.

[0045] Next, implement step S2: By ballasting into the working channel 120 and the ballast tank 110, the watertight sleeve 100 sinks under its own weight until the traction rope 200 is taut.

[0046] Then implement step S3: After the towing rope 200 is taut, drain the ballast water from the ballast tank 110 so that the watertight sleeve 100 floats up until it presses against the bottom plate of the ship, while the towing rope 200 is slack.

[0047] Finally, step S4 is adopted: assuming that the distance between the two closures is 40 meters, then steps S1 to S3 need to be repeated 10 to 13 times. In this way, the water-tight sleeve 100 is moved to the next closure to complete the construction work of the next closure.

[0048] In some other embodiments, the target location may also be a location where additional welding, repair, or other work is required.

[0049] Example 2 involves connecting a moving rope to the end of the traction rope 200, and in step S3, both the moving rope and the traction rope 200 are simultaneously taut. Compared to Example 1, by adding the traction rope 200, the upward and downward distances of the water-tight sleeve 100 can be increased, the moving distance of the traction rope 200 in step S1 can be increased, and the moving efficiency of the water-tight sleeve 100 can be improved.

[0050] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A method for moving a water-proof sleeve, characterized in that, include: S1: Move the slack traction rope at the port lug of the watertight sleeve a certain distance to the target position. The initial position of the watertight sleeve is located at one of the water-sealed joints, and the target position of the watertight sleeve is the next joint. The initial position of the watertight sleeve is located at one of the water-sealed joints of the hull, and the target position is the next joint of the hull. S2: By ballasting the working channel and ballast tank of the watertight sleeve, the watertight sleeve sinks under its own weight until the traction rope is taut. S3: After the towing rope is taut, drain the ballast water from the ballast tank of the watertight sleeve so that the watertight sleeve floats up until the wire rope is slack. The position where the watertight sleeve floats up is the position where the watertight sleeve is against the bottom plate of the ship. S4: Repeat steps S1 to S3 in sequence multiple times until the water-tight sleeve is in the target position.

2. The method for moving a water-proof sleeve according to claim 1, characterized in that: The traction rope is a steel wire rope.

3. The method for moving a water-proof sleeve according to claim 1, characterized in that: In step S1, the traction rope moves a distance of three to four meters.

4. The method for moving a water-proof sleeve according to claim 1, characterized in that: A moving rope is connected to the end of the traction rope, and in step S3, the moving rope and the traction rope are simultaneously taut.

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